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Equity Compensation Plans (Tables)
 6 Months Ended
Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary Of Outstanding And Exercisable Options
The following table is a summary of outstanding and exercisable options as of June 30, 2017:
In thousands except per share
amounts and years
 
Shares
 
Weighted-
Average
Exercise Price
 
Aggregate
Intrinsic Value
Outstanding at June 30, 2017
 
399

 
$
26.34

 
$
10,588

Exercisable at June 30, 2017
 
219

 
$
16.49

 
$
7,727

Unvested at June 30, 2017
 
179

 
$
38.41

 
$
2,860