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Components of Equity
 9 Months Ended
Sep. 30, 2012
Stockholders' Equity Note [Abstract]  
Components of Equity
Components of Equity
The components of equity for the nine months ended September 30, 2012 and 2011 are as follows:
 
Shareholders’
equity
 
Noncontrolling
interest
 
Total
equity
Balance at December 31, 2011
$
2,003,638

 
6,431

 
2,010,069

Exercise of stock options
21,610

 
—

 
21,610

Issuance of shares under stock purchase plan
23,391

 
—

 
23,391

Shares repurchased under provisions of stock repurchase plans
(193,493
)
 
—

 
(193,493
)
Stock compensation expense
32,846

 
—

 
32,846

Tax benefits from stock plans, net
4,000

 
—

 
4,000

Net earnings
249,152

 
318

 
249,470

Other comprehensive income
8,231

 
110

 
8,341

Dividends paid ($.28 per share)
(59,358
)
 
—

 
(59,358
)
Distributions to noncontrolling interest
—

 
(1,177
)
 
(1,177
)
Balance at September 30, 2012
$
2,090,017

 
5,682

 
2,095,699

 
 
 
 
 
 
Balance at December 31, 2010
$
1,740,906

 
7,248

 
1,748,154

Exercise of stock options
30,367

 
—

 
30,367

Issuance of shares under stock purchase plan
24,224

 
—

 
24,224

Shares repurchased under provisions of stock repurchase plans
(108,572
)
 
—

 
(108,572
)
Stock compensation expense
33,446

 
—

 
33,446

Tax benefits from stock plans, net
5,068

 
—

 
5,068

Net earnings
292,836

 
267

 
293,103

Other comprehensive loss
(9,542
)
 
(354
)
 
(9,896
)
Dividends paid ($.25 per share)
(53,014
)
 
—

 
(53,014
)
Distributions to noncontrolling interest
—

 
(822
)
 
(822
)
Balance at September 30, 2011
$
1,955,719

 
6,339

 
1,962,058


On May 2, 2012, the Board of Directors declared a semi-annual cash dividend of $0.28 per share payable on June 15, 2012 to shareholders of record as of June 1, 2012. On May 4, 2011, the Board of Directors declared a semi-annual cash dividend of $.25 per share payable on June 15, 2011 to shareholders of record as of June 1, 2011.
Subsequent to the end of the quarter, on November 5, 2012, the Board of Directors declared a semi-annual cash dividend of $.28 per share payable on December 17, 2012 to shareholders of record as of December 3, 2012.