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Equity Incentive Plans (Tables)
 6 Months Ended
Jun. 30, 2019
Share-based Payment Arrangement [Abstract]  
Summary of the activity of stock option awards A summary of the activity of stock option awards issued and outstanding under Company plans was as follows for the six months ended June 30, 2019:
 
 
Shares
 
Wtd. Avg.
Exercise
Price
 
Wtd. Avg.
Remaining
Contractual Term (years)
 
Aggregate
Intrinsic
Value
 
(in thousands)
 
 
 
 
 
(in thousands)
Options outstanding at January 1, 2019
1,462

 
$
24.30

 
7.20
 
$
924

Options granted
391

 
22.68

 
 
 
 
Options exercised
(64
)
 
16.93

 
 
 
 
Options forfeited/canceled/expired
(117
)
 
24.68

 
 
 
 
Options outstanding at June 30, 2019
1,672

 
$
24.19

 
7.40
 
$
1,122

Options vested and expected to vest at June 30, 2019
1,569

 
$
24.25

 
7.29
 
$
—

Options exercisable at June 30, 2019
842

 
$
24.67

 
5.99
 
$
1,036


Summary of the activity of restricted stock
A summary of the activity of restricted stock outstanding is as follows for the six months ended June 30, 2019:
 
Shares
 
Wtd. Avg.
Grant  Date
Fair Value
 
(in thousands)
 
 
Restricted stock outstanding at January 1, 2019
2,018

 
$
27.62

Granted
788

 
23.79

Vested
(698
)
 
24.08

Forfeited/canceled
(38
)
 
24.01

Restricted stock outstanding at June 30, 2019
2,070

 
$
27.29