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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions The total fair value of options granted during the years ended December 31, 2019, 2018 and 2017 was $50, $143, and $353 respectively, based on the following assumptions and weighted average fair values:
 
 
December 31,
 
 
2019
 
2018
 
2017
Weighted Average Fair Value of Grants
 
$
3.48

 
$
6.50

 
$
6.19

Risk-free Interest Rate
 
2.13
%
 
2.66
%
 
1.66
%
Expected Dividend Yield
 
—
%
 
—
%
 
—
%
Expected Forfeiture Rate
 
—
%
 
—
%
 
—
%
Expected Volatility
 
43.60
%
 
52.68
%
 
50.85
%
Expected Term in Years
 
6.50

 
3.71

 
3.71
Share-based Compensation, Stock Options, Activity
A summary of the status of stock options granted is presented below:
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
 
 
Average
 
 
 
 
 
 
Weighted
 
Remaining
 
Aggregate
 
 
 
 
Average
 
Contractual
 
Intrinsic
 
 
 
 
Exercise
 
Term (in
 
Value (in
 
 
Shares
 
Price
 
years)
 
thousands)
Outstanding at December 31, 2018
 
5,442,920

 
$
18.74

 
 
 
 
Granted
 
14,368

 
$
7.54

 
 
 
 
Exercised
 
(79,468
)
 
$
6.87

 
 
 
 
Forfeited
 
(4,208
)
 
$
6.87

 
 
 
 
Expired
 
(677,348
)
 
$
24.29

 
 
 
 
Outstanding at December 31, 2019
 
4,696,264

 
$
18.05

 
4.49
 
$
5,280

Exercisable at December 31, 2019
 
4,681,896

 
$
18.04

 
4.47
 
$
5,261
Schedule of Nonvested Restricted Stock Units Activity The following table represents the nonvested restricted stock units and their corresponding fair value (based upon the closing share price) at the date of grant:
 
 
Number of
 
Weighted Average
 
 
Shares
 
Grant Date Fair Value
Nonvested at December 31, 2018
 
1,427,151

 
$14.30
Granted
 
963,426

 
$11.26
Vested
 
(1,052,235
)
 
$14.27
Forfeited
 
(305,142
)
 
$13.50
Nonvested at December 31, 2019
 
1,033,200

 
$11.71
Schedule of Nonvested Performance-based Units Activity The following table represents the nonvested performance share units and their corresponding fair value (based upon the Monte Carlo Methodology) on the date of grant:
 
 
Number of
 
Weighted Average
 
 
Shares
 
Grant Date Fair Value
Nonvested at December 31, 2018
 
1,344,985

 
$19.93
Granted
 
407,056

 
$16.56
PSUs Issued as a Result of 200% Payout
 
156,918

 
$22.63
Vested
 
(345,282
)
 
$22.21
Forfeited
 
(162,841
)
 
$17.83
Nonvested at December 31, 2019
 
1,400,836

 
$18.91