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Quarterly Financial Data
12 Months Ended
Dec. 31, 2011
Quarterly Financial Data [Abstract]  
Quarterly Financial Data
21. QUARTERLY FINANCIAL DATA (UNAUDITED)

 

    Fiscal Quarter  
     First      Second      Third     Fourth      Total  
     (In thousands, except per share amounts)  

2011:

             

Net sales

   $ 629,500       $ 665,481       $ 670,824      $ 654,306       $ 2,620,111   

Gross profit

     133,141         136,901         137,747        134,157         541,946   

Income from operations

     65,903         67,859         71,180        67,807         272,749   

Net income

     37,417         39,368         41,777        39,465         158,027   

Basic earnings per share

     0.37         0.39         0.42        0.41         1.59   

Diluted earnings per share

     0.37         0.39         0.42        0.40         1.57   

Stock price — high

     30.69         29.88         29.19        27.16         30.69   

Stock price — low

     25.96         26.26         21.05        21.75         21.05   

2010:

             

Net sales

   $ 550,732       $ 615,459       $ 642,764      $ 626,651       $ 2,435,606   

Gross profit

     86,799         131,665         166,452        147,284         532,200   

Income from operations

     33,616         67,746         (12,342     96,362         185,382   

Net income

     19,194         38,030         93,320        54,891         205,435   

Basic earnings per share

     0.19         0.37         0.92        0.54         2.02   

Diluted earnings per share

     0.19         0.37         0.91        0.54         2.00   

Stock price — high

     25.83         26.48         25.50        27.08         27.08   

Stock price — low

     20.63         20.00         21.19        22.68         20.00   

Note: The sum of the quarters may not equal the total of the respective year's earnings per share on either a basic   or diluted basis due to changes in the weighted average shares outstanding throughout the year.

For the three months ended March 31, June 30, September 30, and December 31, 2011 net income was decreased by $2.1 million or $0.02 per share, $1.2 million or $0.01 per share, $1.0 million or $0.01 per share, and $0.5 million, or $0.005 per share, respectively, due to asset disposal charges related to major energy projects.

For the three months ended June 30, 2011, net income was increased by $1.0 million or $0.01 per share due to an adjustment to reserves related to medical benefits.

For the three months ended September 30, 2010, income from operations was decreased by $111.9 million due to the reversal of a portion of income previously recorded from alternative fuel mixture tax credits in order to claim the cellulosic biofuel producer credits that are recorded as a benefit in the provision for income taxes.

For the three months ended March 31, September 30, and December 31, 2010, net income was increased by $9.2 million or $0.09 per share, $33.4 million or $0.33 per share, and $5.0 million or $0.05 per share, respectively, due to the alternative energy tax credits.

For the three months ended March 31, June 30, September 30, and December 31, 2010, net income was decreased by $2.5 million or $0.02 per share, $1.1 million or $0.01 per share, $1.8 million or $0.02 per share, and $3.2 million or $0.03 per share, respectively, due to asset disposal and facilities closure charges.