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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Assumptions Used to Estimate Fair Value of Options

The Company used the following assumptions:

 

 

 

Three Months Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2016

 

 

2015

 

 

2016

 

 

2015

 

Dividend yield

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Expected volatility

 

 

47.6

%

 

 

44.3

%

 

 

47.5

%

 

 

49.2

%

Risk-free interest rate

 

 

1.23

%

 

 

1.76

%

 

 

1.38

%

 

 

1.74

%

Expected life of options (in years)

 

 

6.25

 

 

 

6.25

 

 

 

6.25

 

 

 

6.25

 

Forfeiture rate

 

 

7.0

%

 

 

7.0

%

 

 

7.0

%

 

 

7.0

%