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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2015
Earnings Per Share [Abstract]  
Reconciliation of Weighted Average Shares Used to Determine Basic and Diluted Earnings Per Share
The following table provides a reconciliation of weighted-average shares used to determine basic and diluted earnings per share.
 
 
Quarter Ended 
 September 30,
 
Nine Months Ended 
 September 30,
In thousands
 
2015
 
2014
 
2015
 
2014
Basic average common shares outstanding
 
16,715

 
16,684

 
16,744

 
16,615

Effect of dilutive options and restricted stock awards
 
313

 
359

 
341

 
352

Diluted average common shares outstanding
 
17,028

 
17,043

 
17,085

 
16,967