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Equity Incentive Plans (Tables)
3 Months Ended
Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of the activity of stock option awards
A summary of the activity of stock option awards issued and outstanding under Company plans is as follows for the three months ended March 31, 2016:
 
 
Shares
 
Wtd. Avg.
Exercise
Price
 
Wtd. Avg.
Remaining
Contractual Term (years)
 
Aggregate
Intrinsic
Value
 
(in thousands)
 
 
 
 
 
(in thousands)
Options outstanding at December 31, 2015
749

 
$
29.98

 
6.85
 
$
3,057

Options granted
295

 
29.39

 
 
 
 
Options exercised
(50
)
 
19.57

 
 
 
 
Options forfeited/canceled/expired
(22
)
 
35.62

 
 
 
 
Options outstanding at March 31, 2016
972

 
$
30.22

 
7.59
 
$
6,226

Options vested and expected to vest at March 31, 2016
905

 
$
29.98

 
7.47
 
$
5,981

Options exercisable at March 31, 2016
521

 
$
27.24

 
6.28
 
$
4,644

Summary of the activity of restricted stock
A summary of the activity of restricted stock outstanding is as follows for the three months ended March 31, 2016:
 
Shares
 
Wtd. Avg.
Grant  Date
Fair Value
 
(in thousands)
 
 
Restricted stock outstanding at December 31, 2015
863

 
$
39.74

Granted
344

 
30.51

Vested
(191
)
 
36.84

Forfeited/canceled
(37
)
 
40.70

Restricted stock outstanding at March 31, 2016
979

 
$
35.99