Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2014

Stockholders' Equity Note [Abstract]

Authorized, Issued, and Outstanding Shares

Our authorized, issued, and outstanding shares (stated in whole numbers) consist of the following:

	Par Value		September 30, 2014	December 31, 2013	September 30, 2013
Preferred stock	$.01	/share
Shares authorized			5,000,000	5,000,000	5,000,000
Shares issued and outstanding			—	—	—
Common stock	$.01	/share
Shares authorized			400,000,000	400,000,000	400,000,000
Shares issued and outstanding			296,440,794	296,753,544	296,742,069

Schedule of Dividends Paid Previously or Declared

The following table presents the dividends either paid previously or declared by our board of directors for future payment:

	2014		2013
First quarter	$	0.25	0.10
Second quarter	0.25		0.20
Third quarter	0.25		0.25
Fourth quarter	0.25		0.25
Total	$	1.00	0.80

Stock Options Granted

The following tables summarize the details of grants made under our stock option plan that are still outstanding, and the assumptions used to value these options. All options granted were effective at the close of business on the date of grant.

	Options Granted	Option Exercise (Strike) Price		Closing Stock Price on Date of Grant		September 30, 2014
Date of Grant						Options Outstanding	Options Exercisable
April 22, 2014	942,500	$	56.00	$	50.53	900,000	—
April 16, 2013	205,000	$	54.00	$	49.25	160,000	—
April 17, 2012	1,235,000	$	54.00	$	49.01	1,105,000	—
April 19, 2011	410,000	$	35.00	$	31.78	320,000	25,000
April 20, 2010	530,000	$	30.00	$	27.13	254,000	104,000
April 21, 2009	790,000	$	27.00	$	17.61	378,850	202,600
April 15, 2008	550,000	$	27.00	$	24.35	178,000	123,000
April 17, 2007	4,380,000	$	22.50	$	20.15	1,581,030	1,266,030
Total	9,042,500					4,876,880	1,720,630

Fair Value Assumptions for Options Granted

Date of Grant	Risk-free Interest Rate		Expected Life of Option in Years	Expected Dividend Yield		Expected Stock Volatility		Estimated Fair Value of Stock Option
April 22, 2014	1.8	%	5.00	2.0	%	28.55	%	$	9.57
April 16, 2013	0.7	%	5.00	1.6	%	37.42	%	$	12.66
April 17, 2012	0.9	%	5.00	1.4	%	39.25	%	$	13.69
April 19, 2011	2.1	%	5.00	1.6	%	39.33	%	$	11.20
April 20, 2010	2.6	%	5.00	1.5	%	39.10	%	$	8.14
April 21, 2009	1.9	%	5.00	1.0	%	38.80	%	$	3.64
April 15, 2008	2.7	%	5.00	1.0	%	30.93	%	$	7.75
April 17, 2007	4.6	%	4.85	1.0	%	31.59	%	$	5.63

Reconciliation of Denominators used in Computation of Basic and Diluted Earnings Per Share

The following tables present a reconciliation of the denominators used in the computation of basic and diluted earnings per share and a summary of the options to purchase shares of common stock which were excluded from the diluted earnings calculation because they were anti-dilutive:

	Nine-month Period		Three-month Period
Reconciliation	2014	2013	2014	2013
Basic weighted average shares outstanding	296,642,783	296,755,815	296,595,100	296,842,771
Weighted shares assumed upon exercise of stock options	842,300	945,509	782,494	873,604
Diluted weighted average shares outstanding	297,485,083	297,701,324	297,377,594	297,716,375

Anti-Dilutive Options Excluded

	Nine-month Period				Three-month Period
Summary of Anti-dilutive Options Excluded	2014		2013		2014		2013
Options to purchase shares of common stock	1,823,031		1,263,599		2,169,565		1,313,261
Weighted average exercise prices of options	$	54.60	$	54.00	$	54.83	$	54.00