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Shared-based Compensation (Tables)
 9 Months Ended
Sep. 30, 2018
Share-based Compensation [Abstract]  
Schedule of Assumptions Used

The weighted average input assumptions used were as follows:







 

 

 



Nine months ended September 30,



2018

 

2017



 

 

 

Expected term (in years)

 6.4 

 

 6.0 

Risk-free interest rate

 2.64% 

 

 2.05% 

Expected volatility

 33.30% 

 

 38.33% 

Dividend yield

 2.87% 

 

 2.40% 



Schedule of Share-based Compensation, Stock Options, Activity

The following table is a summary of our stock option activity:







 

 

 

 

 

 

 

 

 

 



Nine months ended September 30,

 



2018

 

2017

 



Shares

 

Weighted-Average Exercise Price

 

Shares

 

Weighted-Average Exercise Price

 

(shares in thousands)

 

 

 

 

 

 

 

 

 

 

Outstanding at beginning of period

 106 

 

$

 31.18 

 

 129 

 

$

 28.22 

 

Granted

 51 

 

 

 67.50 

 

 38 

 

 

 44.73 

 

Exercised

 (23)

 

 

 28.87 

 

 (21)

 

 

 27.38 

 

Forfeited

 (8)

 

 

 31.09 

 

 (17)

 

 

 37.09 

 

Expired

 -

 

 

 -

 

 (1)

 

 

 28.59 

 

Outstanding at end of the period

 126 

 

$

 46.51 

 

 128 

 

$

 32.00 

 

Exercisable at end of the period

 54 

 

$

 30.21 

 

 62 

 

$

 28.14 

 



Restricted Stock Activity

The following table summarizes our restricted stock activity: 







 

 

 

 

 

 

 

 

 



Nine months ended September 30,



2018

 

2017



Shares

 

Weighted-Average Grant Date Fair Value

 

Shares

 

Weighted-Average Grant Date Fair Value

(shares in thousands)

 

 

 

 

 

 

 

 

 

Outstanding at beginning of period

 129 

 

$

 32.15 

 

 215 

 

$

 27.69 

Granted

 18 

 

 

 79.80 

 

 44 

 

 

 44.73 

Vested

 (86)

 

 

 31.61 

 

 (58)

 

 

 26.09 

Forfeited

 -

 

 

 -

 

 (8)

 

 

 36.37 

Outstanding at end of the period

 61 

 

$

 46.90 

 

 193 

 

$

 31.65