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Earnings Per Share
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Earnings Per Share
EARNINGS PER SHARE

Basic earnings per share of common stock are computed by dividing net income by the weighted-average basic common shares outstanding during the period. Diluted earnings per share assumes the issuance of common shares applicable to stock options in the denominator.
 
Three Months Ended September 30,
 
2013
 
2012
 
Class A
 
Class B
 
Class A
 
Class B
 
(In thousands except per share amounts)
 
 
 
 
 
 
 
 
Numerator for Basic and Diluted Earnings Per Share:
 
 
 
 
 
 
 
Net income
$
24,782

 
 
 
24,322

 
 
Dividends - Class A shares
(1,237
)
 
 
 
(1,237
)
 
 
Dividends - Class B shares
(36
)
 
 
 
(36
)
 
 
 
 
 
 
 
 
 
 
Undistributed income
$
23,509

 
 
 
23,049

 
 
 
 
 
 
 
 
 
 
Allocation of net income:
 

 
 
 
 

 
 
Dividends
$
1,237

 
36

 
1,237

 
36

Allocation of undistributed income
22,844

 
665

 
22,397

 
652

 
 
 
 
 
 
 
 
Net income
$
24,081

 
701

 
23,634

 
688

 
 
 
 
 
 
 
 
Denominator:
 

 
 

 
 

 
 

Basic earnings per share - weighted-average shares
3,435

 
200

 
3,435

 
200

Effect of dilutive stock options
4

 
—

 
—

 
—

 
 
 
 
 
 
 
 
Diluted earnings per share - adjusted weighted-average shares for assumed conversions
3,439

 
200

 
3,435

 
200

 
 
 
 
 
 
 
 
Basic Earnings Per Share
$
7.01

 
3.51

 
6.88

 
3.44

 
 
 
 
 
 
 
 
Diluted Earnings Per Share
$
7.00

 
3.51

 
6.88

 
3.44

 
Nine Months Ended September 30,
 
2013
 
2012
 
Class A
 
Class B
 
Class A
 
Class B
 
(In thousands except per share amounts)
 
 
 
 
 
 
 
 
Numerator for Basic and Diluted Earnings Per Share:
 
 
 
 
 
 
 
Net income
$
68,405

 
 
 
67,309

 
 
Dividends - Class A shares
(1,237
)
 
 
 
(1,237
)
 
 
Dividends - Class B shares
(36
)
 
 
 
(36
)
 
 
 
 
 
 
 
 
 
 
Undistributed income
$
67,132

 
 
 
66,036

 
 
 
 
 
 
 
 
 
 
Allocation of net income:
 

 
 
 
 

 
 
Dividends
$
1,237

 
36

 
1,237

 
36

Allocation of undistributed income
65,233

 
1,899

 
64,168

 
1,868

 
 
 
 
 
 
 
 
Net income
$
66,470

 
1,935

 
65,405

 
1,904

 
 
 
 
 
 
 
 
Denominator:
 

 
 

 
 

 
 

Basic earnings per share - weighted-average shares
3,435

 
200

 
3,435

 
200

Effect of dilutive stock options
5

 
—

 
—

 
—

 
 
 
 
 
 
 
 
Diluted earnings per share - adjusted weighted-average shares for assumed conversions
3,440

 
200

 
3,435

 
200

 
 
 
 
 
 
 
 
Basic Earnings Per Share
$
19.35

 
9.68

 
19.04

 
9.52

 
 
 
 
 
 
 
 
Diluted Earnings Per Share
$
19.32

 
9.68

 
19.04

 
9.52