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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Stock-Based Compensation for Continuing Operations
Stock-based compensation for continuing operations consisted of the following:
 
 
Three Months Ended
 
Nine Months Ended
 
 
September 30,
 
September 30,
(In millions)
 
2017
 
2016
 
2017
 
2016
Stock-based compensation expense
 
$
0.2

 
$
0.2

 
$
0.3

 
$
0.6

Summary of Stock Option Activity
The following table summarizes our stock option activity:
 
 
Stock Options
 
Weighted Average Exercise Price
Outstanding December 31, 2016
 
286,707

 
$
77.50

Granted
 

 

Exercised
 

 

Canceled
 
(40,213
)
 
128.72

Forfeited
 
(6,602
)
 
23.46

Outstanding September 30, 2017
 
239,892

 
$
70.41

Exercisable as of September 30, 2017
 
210,943

 
$
78.15

Summary of Weighted Average Assumptions Used in the Valuation of Stock Options
The following table summarizes our weighted average assumptions used in the Black-Scholes valuation of stock options:
 
Nine Months Ended
 
September 30,
 
2017
 
2016
Volatility
44.3
%
 
41.0
%
Risk-free interest rate
1.6
%
 
1.8
%
Expected life (months)
72

 
72

Dividend yield

 

Summary of Restricted Stock Activity
The following table summarizes our restricted stock activity:
 
 
Restricted Stock
 
Weighted Average Grant Date Fair Value Per Share
Nonvested as of December 31, 2016
 
79,926

 
$
20.63

Granted
 
86,000

 
5.85

Grant adjustments
 
(324
)
 
38.00

Vested
 
(2,071
)
 
17.57

Forfeited
 
(67,206
)
 
22.84

Nonvested as of September 30, 2017
 
96,325

 
$
5.91