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Share-Based Compensation and Other Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2019
Restricted Stock Units (RSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Activity of Awarded Restricted Stock Units
The following table summarizes activity for our most recent fiscal year with respect to awarded RSUs:
 
Restricted Stock
Units
 
Weighted-Average
Grant Date
Fair Value
Balance at beginning of year
208,040

 
$
47.35

Granted
13,175

 
$
30.35

Vested
(74,888
)
 
$
39.40

Forfeited
(9,451
)
 
$
51.71

Balance at end of year
136,876

 
$
49.76
Performance Restricted Stock Units [Domain]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Payment Award, Equity Instruments Other than Options, Valuation Assumptions
The ranges for the assumptions used in the Monte Carlo model for the PRSUs granted during 2019 and 2017 are presented as follows:
 
2019
 
2017
Expected volatility
49.9
%
 
59.63% to 62.18%
Dividend yield
0.0%

 
0.0%
Risk-free interest rate
1.66
%
 
1.44% to 1.51%
Activity of Awarded Performance-based RSUs
The following table summarizes activity for our most recent fiscal year with respect to PRSUs:
 
Performance Restricted Stock
Units
 
Weighted-Average Grant Date
Fair Value
Balance at beginning of year
89,071

 
$
58.69

Granted
15,066

 
$
34.02

Vested
(3,917
)
 
$
63.25

Forfeited
(1,083
)
 
$
63.25

Expired
(19,223
)
 
$
62.92

Balance at end of year
79,914

 
$
52.73