Quarter Ended
March 31,

2012

2011

(In thousands, except per share data)

Net earnings

$

55,075

$

35,526

Basic shares:

Average shares outstanding

51,960

51,546

Basic earnings per share

$

1.06

$

0.69

Diluted shares:

Average shares outstanding

51,960

51,546

Additional shares on the potential dilution from stock options, nonvested restricted stock and performance units

1,266

1,371

53,226

52,917

Diluted earnings per share

$

1.03

$

0.67