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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2014
Earnings Per Share [Abstract]  
Schedule of basic and diluted earnings per common share from continuing operations
The following table presents the calculation of basic and diluted earnings per common share from continuing operations:
 
Three months ended June 30,
 
Six months ended June 30,
 
2014
 
2013
 
2014
 
2013
 
(In thousands, except per share amounts)
Earnings per share — Basic:
 
 
 
 
 
 
 
Earnings from continuing operations
$
75,694

 
62,575

 
$
124,792

 
103,377

Less: Distributed and undistributed earnings allocated to nonvested stock
(301
)
 
(556
)
 
(582
)
 
(978
)
Earnings from continuing operations available to common shareholders — Basic
$
75,393

 
62,019

 
$
124,210

 
102,399

 
 
 
 
 
 
 
 
Weighted average common shares outstanding — Basic
52,564

 
51,445

 
52,612

 
51,201

 
 
 
 
 
 
 
 
Earnings from continuing operations per common share — Basic
$
1.43

 
1.21

 
$
2.36

 
2.00

 
 
 
 
 
 
 
 
Earnings per share — Diluted:
 
 
 
 
 
 
 
Earnings from continuing operations
$
75,694

 
62,575

 
$
124,792

 
103,377

Less: Distributed and undistributed earnings allocated to nonvested stock
(299
)
 
(552
)
 
(578
)
 
(972
)
Earnings from continuing operations available to common shareholders — Diluted
$
75,395

 
62,023

 
$
124,214

 
102,405

 
 
 
 
 
 
 
 
Weighted average common shares outstanding — Basic
52,564

 
51,445

 
52,612

 
51,201

Effect of dilutive equity awards
482

 
478

 
472

 
457

Weighted average common shares outstanding — Diluted
53,046

 
51,923

 
53,084

 
51,658

 
 
 
 
 
 
 
 
Earnings from continuing operations per common share — Diluted
$
1.42

 
1.19

 
$
2.34

 
1.98

 
 
 
 
 
 
 
 
Anti-dilutive equity awards not included above
412

 
593

 
314

 
1,003