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Employee Stock Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]  
Summary of Non-qualified Stock Option Disclosures
The following table summarizes non-qualified stock option disclosures for 2013, 2012 and 2011:
Year ended December 31,
(dollars in thousands, except options and assumptions)

2013

2012

2011
Stock options granted

203,825


163,042


168,939

Stock option compensation expense included in the Consolidated Statements of Operations

$
1,689


$
1,443


$
2,189

Weighted-average grant-date fair value of options granted using the Black-Scholes model

$
8.42


$
9.33


$
12.58

Weighted average assumptions for stock option grants:






Risk-free interest

1.12%

1.08%

2.74%
Expected term

6.3 years

6.3 years

6.3 years
Expected volatility

44.51%

77.94%

88.15%
Dividend yield

0.00%

0.00%

0.00%
Stock Options Activity
Information with respect to our stock option activity for 2013, 2012 and 2011 is as follows:
Stock Options
 
Shares
 
Weighted-Average
Exercise Price
per Share
 
Weighted-Average
Remaining
Contractual Life
(In Years)
 
Aggregate
Intrinsic
Value
(in thousands)
Outstanding balance at January 1, 2011
 
1,714,934

 
$
15.58

 
6
 
$
6,710

Granted
 
168,939

 
$
16.72

 
 
 
 
Exercised
 
(69,327
)
 
$
6.95

 
 
 
$
681

Canceled
 
(188,840
)
 
$
27.90

 
 
 
 
Outstanding balance at December 31, 2011
 
1,625,706

 
$
14.63

 
4
 
$
3,957

Granted
 
163,042

 
$
13.96

 
 
 
 
Exercised
 
(223,382
)
 
$
5.52

 
 
 
$
2,694

Canceled
 
(253,732
)
 
$
22.75

 
 
 
 
Outstanding balance at December 31, 2012
 
1,311,634

 
$
14.47

 
4
 
$
7,651

Granted
 
203,825

 
$
19.05

 
 
 
 
Exercised
 
(397,369
)
 
$
13.56

 
 
 
$
3,257

Canceled
 
(129,310
)
 
$
27.58

 
 
 
 
Outstanding balance at December 31, 2013
 
988,780

 
$
14.07

 
5
 
$
6,856

Exercisable at December 31, 2013
 
646,504

 
$
12.61

 
 
 
$
5,422
Outstanding Options Exercisable and Weighted Average Exercise Price
The number of outstanding options exercisable and weighted average exercise price is as follows:
December 31,
 
2013
 
2012
 
2011
Outstanding options exercisable
 
646,504

 
964,043

 
1,202,949

Weighted average exercise price
 
$
12.61

 
$
15.06

 
$
16.14
Schedule of Nonvested Stock Option Activity
The following table summarizes our nonvested stock option activity for 2013, 2012 and 2011:
Nonvested Stock Options

Shares

Weighted-Average
Value (per Share)
Nonvested at January 1, 2011

550,120


$
4.81

Granted

168,939


$
12.58

Vested

(283,185
)

$
6.87

Forfeited

(13,117
)

$
7.02

Nonvested at December 31, 2011

422,757


$
7.53

Granted

163,042


$
9.33

Vested

(202,115
)

$
5.76

Forfeited

(36,093
)

$
10.40

Nonvested at December 31, 2012

347,591


$
9.11

Granted

203,825


$
8.42

Vested

(201,865
)

$
8.47

Forfeited

(7,275
)

$
9.78

Nonvested at December 31, 2013

342,276


$
9.07
Summary of Stock Appreciation Rights Disclosures
The following table summarizes stock appreciation rights disclosures for 2013:

Year ended December 31,
(dollars in thousands, except stock appreciation rights and assumptions)
 
2013
Stock appreciation rights granted
 
244,229

Stock appreciation rights compensation expense included in the Consolidated Statements of Operations
 
$
59

Weighted-average grant-date fair value of stock appreciation rights granted using the Black-Scholes model
 
$
10.35

Weighted average assumptions for stock appreciation rights granted:
 
 
Risk-free interest
 
1.95%
Expected term
 
6.5 years
Expected volatility
 
43.52%
Dividend yield
 
0.00%
Stock Appreciation Rights Activity
Information with respect to our stock appreciation right activity for 2013 is as follows:
Stock Appreciation Rights
 
Shares
 
Weighted Average Exercise Price
 
Weighted-Average
Remaining
Contractual Life
(In Years)
 
Aggregate
Intrinsic
Value
(in thousands)
Outstanding balance at January 1, 2013
 
6,750

 
$
14.37

 
 
 
 
Granted
 
244,229

 
$
21.26

 
 
 
 
Outstanding balance at December 31, 2013
 
250,979

 
$
21.07

 
10
 
$
—

Exercisable at December 31, 2013
 
2,938

 
$
14.03

 
 
 
$
20


The number of outstanding stock appreciation rights exercisable and weighted average exercise price is as follows:
December 31,
 
2013
Outstanding Stock Appreciation Rights exercisable
 
2,938

Weighted average exercise price
 
$
14.03
Schedule of Non-vested Stock Appreciation Rights Activity
The following table summarizes our non-vested stock appreciation rights for 2013:
Nonvested Stock Appreciation Rights
 
Shares
 
Weighted-Average
Value (per Share)
Nonvested at January 1, 2013
 
5,500

 
$
10.86

Granted
 
244,229

 
$
10.35

Vested
 
(1,688
)
 
$
10.73

Nonvested at December 31, 2013
 
248,041

 
$
10.36
Restricted Stock Units Award Activity
A summary of the activity for restricted stock units under the Omnibus Plan for 2013, 2012 and 2011 is presented below:
Year ended December 31,
(dollars in thousands, except share amounts)
 
2013
 
2012
 
2011
Beginning nonvested balance
 
263,181

 
245,359

 
404,415

Granted
 
131,555

 
215,180

 
165,253

Vested
 
(186,276
)
 
(152,340
)
 
(301,308
)
Forfeited
 
—

 
(45,018
)
 
(23,001
)
Ending nonvested balance
 
208,460

 
263,181

 
245,359

 
 
 
 
 
 
 
Weighted-average grant-date fair value per restricted stock unit
 
$
19.33

 
$
13.99

 
$
16.44

 
 
 
 
 
 
 
Compensation expense
 
$
3,315

 
$
1,878

 
$
2,956