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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2012
Earnings Per Share [Abstract]  
Computation of basic and diluted net earnings per share
The following table sets forth the computation of basic and diluted EPS:
(Thousands except per share amounts)
 
2012
 
2011
 
2010
Numerator for basic and diluted EPS:
 
 
 
 
 
 
Net income
 
$
24,664

 
$
39,979

 
$
46,427

Denominator:
 
 
 
 
 
 
Denominator for basic EPS:
 
 
 
 
 
 
Weighted-average shares outstanding
 
20,418

 
20,365

 
20,282

Effect of dilutive securities:
 
 
 
 
 
 
Stock options and stock appreciation rights
 
163

 
237

 
156

Restricted stock
 
94

 
152

 
151

Performance restricted shares
 
4

 

 
1

Diluted potential common shares
 
261

 
389

 
308

Denominator for diluted EPS:
 
 
 
 
 
 
Adjusted weighted-average shares outstanding
 
20,679

 
20,754

 
20,590

Basic EPS
 
$
1.21

 
$
1.96

 
$
2.29

Diluted EPS
 
$
1.19

 
$
1.93

 
$
2.25