Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Comparison Of Basic And Diluted Earnings Per Share

The following table sets forth the comparison of basic and diluted earnings per share:

	Three Months Ended   June 30,					Six Months Ended   June 30,
	2014		2013			2014		2013
Basic earnings (loss) per share:
Net income (loss)	$	151,863	$	(1,862	)	$	328,835	$	157,130
Weighted average common shares outstanding	97,809,639		103,267,659			98,672,618		103,552,656
Basic earnings (loss) per share	$	1.55	$	(0.02	)	$	3.33	$	1.52

	Three Months Ended   June 30,					Six Months Ended   June 30,
	2014		2013			2014		2013
Diluted earnings (loss) per share:
Net income (loss)	$	151,863	$	(1,862	)	$	328,835	$	157,130
Weighted average common shares outstanding	97,809,639		103,267,659			98,672,618		103,552,656
Share equivalents:
Stock options	1,448,071		—			1,456,439		1,479,675
RSUs and performance-based equity awards	455,744		—			550,224		913,587
Employee share purchase plan	11,348		—			12,287		3,867
Weighted average common shares and common share equivalents outstanding - diluted	99,724,802		103,267,659			100,691,568		105,949,785
Diluted earnings (loss) per share	$	1.52	$	(0.02	)	$	3.27	$	1.48