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Consolidated Quarterly Data
 12 Months Ended
Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]  
Consolidated Quarterly Data
18.
Consolidated Quarterly Data (Unaudited)
 
2012
 
Q1
 
Q2
 
Q3
 
Q4
Net Sales
$
173,712

 
$
199,493

 
$
178,268

 
$
187,507

Gross Profit
$
75,319

 
$
88,951

 
$
77,563

 
$
83,463

Net Earnings
$
5,324

 
$
13,671

 
$
8,745

 
$
13,844

Basic Earnings per Share
$
0.28

 
$
0.74

 
$
0.47

 
$
0.75

Diluted Earnings per Share
$
0.28

 
$
0.71

 
$
0.46

 
$
0.73

 
2011
 
Q1
 
Q2
 
Q3
 
Q4
Net Sales
$
172,591

 
$
201,259

 
$
186,990

 
$
193,158

Gross Profit
$
71,931

 
$
83,468

 
$
80,253

 
$
83,529

Net Earnings
$
5,866

 
$
5,855

 
$
9,728

 
$
11,264

Basic Earnings per Share
$
0.31

 
$
0.31

 
$
0.52

 
$
0.60

Diluted Earnings per Share
$
0.30

 
$
0.30

 
$
0.50

 
$
0.59


The summation of quarterly data may not equate to the calculation for the full fiscal year as quarterly calculations are performed on a discrete basis.
Regular quarterly dividends aggregated $0.69 per share in 2012, or $0.17 per share for the first three quarters of 2012 and $0.18 for the fourth quarter of 2012, and $0.68 per share in 2011, or $0.17 per quarter.