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Share-Based Compensation and Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
A summary of the Company’s restricted stock unit activity with respect to the years ended December 31, 2013, 2014 and 2015 follows:
 
Number of Shares

Weighted Average
Grant Date Fair
Value
Nonvested at December 31, 2012
1,380


$
8.37

Granted
333


$
12.37

Vested
(470
)

$
7.74

Forfeited
(127
)

$
9.29

Nonvested at December 31, 2013
1,116


$
9.73

Granted
631


$
10.89

Vested
(836
)

$
9.20

Forfeited
(106
)

$
10.57

Nonvested at December 31, 2014
805


$
11.07

Granted
967


$
10.99

Vested
(563
)

$
10.25

Forfeited
(40
)

$
11.05

Nonvested at December 31, 2015
1,169


$
11.40
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
The following table reflects share-based compensation expense by type of award:
 
Year Ended December 31,
 
2015

2014

2013
Share-based compensation expense:
 


 


 

Stock options
$
287


$
320


$
570

Restricted stock units
7,316


5,922


3,536

Total share-based compensation
7,603


6,242


4,106

Tax effect on share-based compensation
2,767


2,263


1,500

Net effect on net income
$
4,836


$
3,979


$
2,606

Tax effect on:
 


 


 

Effect on earnings per share—basic
$
(0.15
)

$
(0.12
)

$
(0.08
)
Effect on earnings per share—diluted
$
(0.15
)

$
(0.12
)

$
(0.08
)
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of the Company’s stock option activity with respect to the years ended December 31, 2013, 2014 and 2015 follows:

 
Shares

Weighted Average Exercise Price Per Share

Weighted Average Remaining Contractual Term (years)

Aggregate Intrinsic Value
Outstanding at December 31, 2012
1,487


$
14.15


 

 

Granted
—


—


 

 

Exercised
(96
)

8.10


 

 

Expired
(392
)

16.60


 

 

Forfeited
(29
)

7.88


 

 

Outstanding at December 31, 2013
970


13.94


 

 

Granted
—


—


 

 

Exercised
(25
)

6.86


 

 

Expired
(320
)

21.51


 

 

Forfeited
(10
)

8.30


 

 

Outstanding at December 31, 2014
615


10.39


 

 
Granted
—


—


 

 

Exercised
(25
)

8.19


 

 

Expired
(100
)

15.56


 

 

Forfeited
—


—


 

 

Outstanding at December 31, 2015
490


$
9.46


4.4

$
2,357

Vested or expected to vest at December 31, 2015
485


$
9.43






Exercisable at December 31, 2015
420


$
9.00


4.0

$
2,217
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
The options outstanding and exercisable at December 31, 2015 were in the following exercise price ranges:

 

Options Outstanding

Options Exercisable
Range of Exercise Prices

Shares

Weighted Average Remaining Contractual Life (years)

Weighted
Average
Exercise Price

Shares

Weighted
Average
Exercise Price
$6.80 - $6.80

254


3.6

$
6.80


254


$
6.80

$7.86 - $7.86

20


3.0

$
7.86


20


$
7.86

$12.22 - $12.22

171


7.0

$
12.22


101


$
12.22

$14.46 - $14.81

45


0.1

$
14.74


45


$
14.74

$6.80 - $14.81

490


4.4

$
9.46


420


$
9.00