Earnings Per Share (Tables)

9 Months Ended

Sep. 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   September 30,				Nine Months Ended   September 30,
	2014		2013		2014		2013
Basic earnings per share:
Net income	$	30,915	$	122,843	$	359,750	$	279,973
Weighted average common shares outstanding	96,458,231		101,974,077		97,926,378		103,020,681
Basic earnings per share	$	0.32	$	1.20	$	3.67	$	2.72

	Three Months Ended   September 30,				Nine Months Ended   September 30,
	2014		2013		2014		2013
Diluted earnings per share:
Net income	$	30,915	$	122,843	$	359,750	$	279,973
Weighted average common shares outstanding	96,458,231		101,974,077		97,926,378		103,020,681
Share equivalents:
Stock options	1,430,243		1,500,342		1,449,641		1,492,374
RSUs and performance-based equity awards	541,711		708,399		575,675		877,107
Employee share purchase plan	14,053		1,761		13,602		3,114
Weighted average common shares and common share equivalents outstanding - diluted	98,444,238		104,184,579		99,965,296		105,393,276
Diluted earnings per share	$	0.31	$	1.18	$	3.60	$	2.66