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Equity Compensation Plans (Tables)
 6 Months Ended
Jun. 30, 2019
Share-based Payment Arrangement [Abstract]  
Schedule of Outstanding and Exercisable Options
The following table is a summary of outstanding and exercisable options as of June 30, 2019:
In thousands except per share
amounts
 
Shares
 
Weighted-
Average
Exercise Price
 
Aggregate
Intrinsic Value
Outstanding at June 30, 2019
 
599

 
$
30.32

 
$
644

Exercisable at June 30, 2019
 
256

 
$
29.89

 
$
635

Unvested at June 30, 2019
 
343

 
$
30.64

 
$
9