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SHARE-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock Option Activity under Plan
A summary of stock option activity during the year ended December 31, 2015 is as follows (amounts in table represent actual values except where indicated otherwise):
 
Number
of
Options
 
Wgtd.
Avg.
Exercise
Price
 
Wgtd.
Avg.
Term
 
Aggregate
Intrinsic
Value
(in thousands)
Options outstanding, beginning of period
204,974

 
$
33.94

 
 
 
 
Granted
—

 
—

 
 
 
 
Exercised
—

 
—

 
 
 
 
Forfeited
—

 
—

 
 
 
 
Expired
(60,500
)
 
50.68

 
 
 
 
Options outstanding, end of period
144,474

 
26.92

 
2.1 years

 
$
—

Options exercisable, end of period
144,474

 
26.92

 
2.1 years

 
—

Options unvested, end of period
—

 
—

 
—

 
—

Exercise prices for stock options outstanding at December 31, 2015 range from $6.97 to $47.75.
A summary of stock option activity during the year ended December 31, 2014 is as follows (amounts in table represent actual values except where indicated otherwise):
 
Number
of
Options
 
Wgtd.
Avg.
Exercise
Price
 
Wgtd.
Avg.
Term
 
Aggregate
Intrinsic
Value
(in thousands)
Options outstanding, beginning of period
331,174

 
$
39.37

 
 
 
 
Granted
—

 
—

 
 
 
 
Exercised
(250
)
 
46.20

 
 
 
 
Forfeited
—

 
—

 
 
 
 
Expired
(125,950
)
 
48.21

 
 
 
 
Options outstanding, end of period
204,974

 
33.94

 
2.4 years

 
$
531

Options exercisable, end of period
204,974

 
33.94

 
2.4 years

 
531

Options unvested, end of period
—

 
—

 
—

 
—

A summary of stock option activity during the year ended December 31, 2013 is as follows (amounts in table represent actual values except where indicated otherwise):
 
Number
of
Options
 
Wgtd.
Avg.
Exercise
Price
 
Wgtd.
Avg.
Term
 
Aggregate
Intrinsic
Value
(in thousands)
Options outstanding, beginning of period
411,794

 
$
39.04

 
 
 
 
Granted
—

 
—

 
 
 
 
Exercised
—

 
—

 
 
 
 
Forfeited
(15,250
)
 
42.45

 
 
 
 
Expired
(65,370
)
 
36.56

 
 
 
 
Options outstanding, end of period
331,174

 
39.37

 
2.2 years
 
$
1,708

Options exercisable, end of period
318,279

 
40.62

 
2.1 years
 
1,373

Options unvested, end of period
12,895

 
8.64

 
5.0 years
 
335
Summary of Restricted Stock Activity Under Plan
A summary of the restricted stock activity under the 2009 Plan for the years ended December 31, 2015, 2014 and 2013 is as follows (amounts in table represent actual values):
 
2015
 
2014
 
2013
 
Number of
Restricted
Shares
 
Wgtd.
Avg.
Fair Value
Per Share
 
Number of
Restricted
Shares
 
Wgtd.
Avg.
Fair Value
Per Share
 
Number of
Restricted
Shares
 
Wgtd.
Avg.
Fair Value
Per Share
Restricted stock outstanding, beginning of period
1,303,106

 
$
29.95

 
1,258,053

 
$
23.92

 
1,108,874

 
$
27.56

Issuances
1,420,475

 
16.70

 
674,904

 
36.44

 
848,498

 
20.61

Lapse of restrictions
(638,582
)
 
29.60

 
(598,796
)
 
24.57

 
(534,041
)
 
25.45

Forfeitures
(278,442
)
 
22.39

 
(31,055
)
 
30.19

 
(165,278
)
 
26.43

Restricted stock outstanding, end of period
1,806,557

 
$
20.83

 
1,303,106

 
$
29.95

 
1,258,053

 
$
23.92