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Earnings (Loss) Per Share and Comprehensive (Loss) Earnings (Tables)
6 Months Ended
Jun. 30, 2011
Earnings Per Share and Comprehensive Earnings  
Computation of basic and diliuted earnings (loss) per share

 
  Three Months Ended
June 30,
  Six Months Ended
June 30,
 
(in thousands, except per share data)
  2011   2010   2011   2010  

Net earnings

  $ 105,166   $ 89,023   $ 52,669   $ 106,692  

Less: earnings allocable to participating securities

    1,012     1,713     544     2,133  
                   

Earnings available for common shareholders

  $ 104,154   $ 87,310   $ 52,125   $ 104,559  

Basic earnings per share

 
$

1.93
 
$

1.65
 
$

0.97
 
$

2.01
 
                   

Diluted earnings per share

  $ 1.90   $ 1.64   $ 0.95   $ 2.00  
                   

Weighted average shares outstanding—basic

    54,004     52,965     53,936     52,027  

Add: Dilutive effects of stock options and RSUs

    704     448     755     380  
                   

Weighted average shares outstanding—dilutive

    54,708     53,413     54,691     52,407  
                   
Components of other comprehensive earnings (loss)

 
  Three months ended
June 30,
  Six months ended
June 30,
 
(in thousands)
  2011   2010   2011   2010  

Net earnings

  $ 105,166   $ 89,023   $ 52,669   $ 106,692  

Amortization of Accumulated other comprehensive loss related to de-designated hedges, net of income tax benefits of $5,837, $2,478, $11,673, and $4,563, respectively

    9,522     4,044     19,045     7,444  
                   

Comprehensive earnings

  $ 114,688   $ 93,067   $ 71,714   $ 114,136