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Stock-Based Compensation and Other Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2018
Employee Stock Option [Member]  
Notes Tables  
Schedule of activity for stock options outstanding
The following table summarizes activity for our outstanding stock options for the year ended December 31, 2018:
Stock Options
Shares
 
Weighted-
Average
Exercise Price
 
Weighted-
Average
Remaining
Contractual
Life (Years)
 
Aggregate
Intrinsic Value
(In thousands)
Outstanding at beginning of period
3,965,525

 
$
7.03

 
 
 
 

Granted

 

 
 
 
 

Exercised
(602,853
)
 
6.43

 
 
 
 

Expired or canceled
(50,946
)
 
8.04

 
 
 
 

Outstanding at end of period
3,311,726

 
$
7.13

 
4.61
 
$
4,065

 
 
 
 
 
 
 
 
Vested or expected to vest at end of period
3,309,559

 
$
7.13

 
4.61
 
$
4,060

Options exercisable at end of period
2,947,589

 
$
7.47

 
4.32
 
$
3,137

Schedule of weighted average assumptions for fair value of options granted
We estimated the fair value of options granted on the date of grant using the Black-Scholes option-pricing model, with the following weighted average assumptions:
 
 
 
2016
Risk-free interest rate
1.38
%
Expected life of the option in years
5.22

Expected volatility
50.5
%
Dividend yield
%
Weighted-average exercise price and grant date fair value of stock options
The following table summarizes information about the weighted-average exercise price and the weighted-average grant date fair value of stock options granted:
 
2016
Weighted-average exercise price of the stock on the date of grant
$
4.32

Weighted-average grant date fair value on the date of grant
$
1.97

Stock Appreciation Rights (SARs) [Member]  
Notes Tables  
Schedule of activity for outstanding cash-settled stock appreciation rights
The following table summarizes activity for outstanding cash-settled stock appreciation rights for the year-ended December 31, 2018:
Cash-Settled Stock Appreciation Rights
Rights
Outstanding at beginning of period
43,000

Exercised
(18,900
)
Expired or cancelled
(24,100
)
Outstanding at end of period

Performance Based Restricted Stock Units [Member]  
Notes Tables  
Weighted-average exercise price and grant date fair value of stock options
We estimated the fair value of performance-based restricted stock units at the date of grant using the Monte Carlo valuation model, with the following weighted average assumptions:
 
2016
Risk-free interest rate
0.95
%
Average closing price (1)
$
4.69

Expected volatility
46.9
%
Dividend yield
%

(1)Average closing price of our shares over the 30-calendar days ending May 16, 2016
Schedule of performance-based restricted stock units
The ending TSR price is equal to the average closing price of our shares over the last 30-calendar days of the performance period as set forth in the following table:
 
2016
Number of performance-based restricted stock units issued, at target
230,790

Range of payout of shares for each executive
0% - 150%

Performance period begin date
June 1, 2016

Performance period end date
May 31, 2019

Estimated fair value at date of grant
$
5.18

Schedule of activity for outstanding performance-based restricted stock units
The following table summarizes activity for outstanding performance-based restricted stock units for the year-ended December 31, 2018:
Nonvested Performance-Based Restricted Stock Units
Shares
 
Weighted-Average
Grant Date
Fair Value
Outstanding at beginning of period
353,940

 
$
6.88

Granted

 

Vested
(123,150
)
 
10.06

Forfeited

 

Outstanding at the end of period
230,790

 
$
5.18

Restricted stock [Member]  
Notes Tables  
Schedule of activity for outstanding time-vested restricted stock awards and restricted stock units
The following tables summarize the activity for our outstanding time-vested restricted stock awards and restricted stock units for the year ended December 31, 2018:
Nonvested Restricted Stock Awards (Time-Vesting)
Shares
 
Weighted-Average
Grant Date
Fair Value
Nonvested at January 1, 2018
168,714

 
$
7.24

Granted
135,578

 
10.38

Vested
(123,714
)
 
7.29

Forfeited

 

Nonvested at December 31, 2018
180,578

 
$
9.56

Nonvested Restricted Stock Units (Time-Vesting)
Shares
 
Weighted-Average
Grant Date
Fair Value
Nonvested at January 1, 2018
1,990,637

 
$
6.38

Granted
917,901

 
10.59

Vested
(953,572
)
 
6.45

Forfeited
(157,428
)
 
8.01

Nonvested at December 31, 2018
1,797,538

 
$
8.33

Restricted Stock Units (RSUs) [Member]  
Notes Tables  
Schedule of activity for outstanding time-vested restricted stock awards and restricted stock units
The following tables summarize the activity for our outstanding time-vested restricted stock awards and restricted stock units for the year ended December 31, 2018:
Nonvested Restricted Stock Awards (Time-Vesting)
Shares
 
Weighted-Average
Grant Date
Fair Value
Nonvested at January 1, 2018
168,714

 
$
7.24

Granted
135,578

 
10.38

Vested
(123,714
)
 
7.29

Forfeited

 

Nonvested at December 31, 2018
180,578

 
$
9.56

Nonvested Restricted Stock Units (Time-Vesting)
Shares
 
Weighted-Average
Grant Date
Fair Value
Nonvested at January 1, 2018
1,990,637

 
$
6.38

Granted
917,901

 
10.59

Vested
(953,572
)
 
6.45

Forfeited
(157,428
)
 
8.01

Nonvested at December 31, 2018
1,797,538

 
$
8.33