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Stock Compensation Stock Compensation (Tables)
 12 Months Ended
Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity
Stock option activity for the years ended December 31, 2016, 2015, and 2014 was:
 
Shares
 
Weighted Average
Exercise Price
 
Weighted Average
Remaining
Contractual Life
(Years)
 
Aggregate
Intrinsic
Value
 
(in thousands, except exercise price and years)
Outstanding as of January 1, 2014
2,105

 
$
13.34

 
4.86
 
$
10,790

Granted
119

 
14.22

 
 
 
 

Exercised
(266
)
 
5.05

 
 
 
 

Forfeited or expired
(262
)
 
21.02

 
 
 
 

Outstanding as of December 31, 2014
1,696

 
$
13.52

 
3.88
 
$
4,435

Granted
35

 
13.52

 
 
 
 

Exercised
(285
)
 
6.54

 
 
 
 

Forfeited or expired
(150
)
 
21.82

 
 
 
 

Outstanding as of December 31, 2015
1,296

 
$
14.09

 
2.83
 
$
1,261

Granted
—

 
—

 
 
 
 

Exercised
(104
)
 
4.04

 
 
 
 

Forfeited or expired
(674
)
 
13.47

 
 
 
 

Outstanding as of December 31, 2016
518

 
$
16.90

 
3.99
 
$
186,184

Exercisable at December 31, 2016
447

 
$
17.37

 
3.48
 
$
186,184

Vested and expected to vest at December 31, 2016
518

 
$
16.90

 
3.97
 
$
186,184
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
During the years ended December 31, 2015 and 2014 stock options were valued using a Black Scholes option pricing model using the following assumptions:
 
Year Ended December 31,
 
2015
 
2014
Expected volatility
43%
 
44% - 50%
Dividend yield
—
 
—
Risk-free interest rate
1.50% - 1.72%
 
1.41% - 1.71%
Expected life (in years)
4.00
 
4.00
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
RSA and RSU activity during the years ended December 31, 2016, 2015, and 2014 was:
 
Restricted Stock Awards
 
Restricted Stock Units
 
Shares
 
Weighted
Average
Grant Date
Fair Value
 
Units
 
Weighted
Average
Grant Date
Fair Value
Unvested at January 1, 2014
210,490

 
$
13.43

 
1,965,667

 
$
16.50

Granted
9,973

 
15.04

 
1,749,993

 
16.05

Vested
(68,420
)
 
15.03

 
(541,888
)
 
17.64

Forfeited
(144,555
)
 
12.67

 
(1,176,301
)
 
16.51

Unvested at December 31, 2014
7,488

 
$
15.61

 
1,997,471

 
$
15.78

Granted
15,987

 
15.01

 
2,866,562

 
10.14

Vested
(15,480
)
 
15.30

 
(505,025
)
 
16.20

Forfeited
(1,328
)
 
15.00

 
(1,270,630
)
 
14.14

Unvested at December 31, 2015
6,667

 
$
15.00

 
3,088,378

 
$
10.75

Granted
22,860

 
10.28

 
2,312,121

 
9.16

Vested
(18,097
)
 
12.02

 
(612,370
)
 
13.05

Forfeited
—

 
—

 
(932,761
)
 
11.26

Unvested at December 31, 2016
11,430

 
$
10.28

 
3,855,368

 
$
10.31

RSAs vested during the years ended December 31, 2016, 2015, and 2014 consisted entirely of time-based awards. RSUs vested during the year ended December 31, 2016 consisted of 31,396 performance-based awards and 599,071 time-based awards. RSUs vested during the year ended December 31, 2015 consisted of 67,893 performance-based awards and 437,132 time-based awards. RSUs vested during the year ended December 31, 2014 consisted of 30,946 performance-based awards and 510,942 time-based awards.