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Share-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Payment Award, Valuation Assumptions
The following table includes the weighted- average assumptions used in estimating the fair values and the resulting weighted-average fair value of stock options granted in the periods presented:
 
Year Ended December 31, 2014
 
Year Ended December 31, 2013
 
Year Ended December 31, 2012
Weighted average fair values of stock options granted
$
—

 
$
5.70

 
$
5.47

Expected volatility
—
%
 
59.9
%
 
47.9
%
Expected dividends
—
%
 
2.01
%
 
1.18
%
Weighted average risk-free interest rate
—
%
 
.65
%
 
.33
%
Expected life of stock options (in years)
0.0

 
3.5

 
3.5
Schedule of Stock Options Activity
A summary of stock option activity for the years ended December 31, 2014, 2013 and 2012 is as follows:
 
Shares
 
Weighted
Average
Exercise Price
 
Weighted
Average
Remaining
Contractual
Term (Years)
 
Aggregate Intrinsic
Value
 
 
 
 
 
 
 
(in thousands)
Outstanding at January 1, 2012
3,315,175

 
$
2.51

 
1.56
 
$
64,959

Granted
45,000

 
$
16.94

 
 
 
 
Exercised
(1,361,542
)
 
$
0.75

 
 
 
 
Canceled
—

 
$
—

 
 
 
 
Outstanding at December 31, 2012
1,998,633

 
$
4.03

 
1.17
 
$
24,171

Granted
45,000

 
$
14.89

 
 
 
 
Exercised
(1,251,633
)
 
$
1.73

 
 
 
 
Canceled
—

 
$
—

 
 
 
 
Outstanding at December 31, 2013
792,000

 
$
8.28

 
1.00
 
$
5,093

Granted
—

 
$
—

 
 
 
 
Exercised
(450,000
)
 
$
1.75

 
 
 
 
Canceled
(135,000
)
 
$
17.58

 
 
 
 
Outstanding at December 31, 2014
207,000

 
$
16.41

 
1.88
 
$
121

Exercisable at December 31, 2014
139,500

 
$
16.35

 
1.43
 
$
89
Schedule of Nonvested Share Activity
A summary of non-vested options and changes for the years ended December 31, 2014, 2013 and 2012 is as follows:

 
Non-Vested Number of Shares
 
Weighted
Average
Exercise Price
 
 
 
 
Non-vested balance at January 1, 2012
180,005

 
$
17.17

Granted
45,000

 
$
16.94

Vested
(90,005
)
 
$
14.60

Canceled
—

 
$
—

Non-vested balance at December 31, 2012
135,000

 
$
18.80

Granted
45,000

 
$
14.89

Vested
(67,500
)
 
$
18.66

Canceled
—

 
$
—

Non-vested balance at December 31, 2013
112,500

 
$
17.32

Granted
—

 
$
—

Vested
(45,000
)
 
$
18.53

Canceled
—

 
$
—

Non-vested balance at December 31, 2014
67,500

 
$
16.52
Schedule of Shares Authorized under Stock Option Plans, by Exercise Price Range
The following table summarizes information about stock options outstanding by price range as of December 31, 2014:
 
 
Options Outstanding
 
Options Exercisable
Range of Exercise Prices
 
Number Outstanding
 
Weighted-Average Remaining Contractual Life (Years)
 
Weighted-Average Exercise Price
 
Number of Shares
 
Weighted-Average Exercise Price
$2.18-$2.36
 
27,000

 
1.41
 
$
2.27

 
27,000

 
$
2.27

$14.89-$16.94
 
90,000

 
2.98
 
$
15.92

 
33,750

 
$
16.26

$20.58-$21.70
 
90,000

 
0.93
 
$
21.14

 
78,750

 
$
21.22

 
 
207,000

 
1.88
 
$
16.41

 
139,500

 
$
16.35
Schedule of Nonvested Restricted Stock Activity
A summary of the status of the Company’s non-vested restricted stock grant shares is presented in the following table:

 
Shares
 
Weighted-Average Grant Date
Fair Value
Non vested at January 1, 2012
145,081

 
$
20.13

Granted
73,061

 
$
23.26

Vested
(90,379
)
 
$
18.89

Forfeited
(6,607
)
 
$
24.10

Non vested at December 31, 2012
121,156

 
$
22.74

Granted
32,842

 
$
15.91

Vested
(76,576
)
 
$
22.56

Forfeited
(2,157
)
 
$
23.42

Non vested at December 31, 2013
75,265

 
$
19.92

Granted
171,781

 
$
16.96

Vested
(52,388
)
 
$
20.35

Forfeited
(6,136
)
 
$
18.91

Non vested at December 31, 2014
188,522

 
$
17.13