XML 38 R27.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2018
Earnings Per Share [Abstract]  
Computation of basic and diluted earnings per share
 
For the Three Months Ended 
 September 30,
 
For the Nine Months Ended 
 September 30,
 
2018
 
2017
 
2018
 
2017
Numerator (basic and diluted):
 
 
 
 
 
 
 
Net income
$
366,151

 
$
283,734

 
$
1,024,130

 
$
831,489

 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
Weighted-average common shares outstanding – basic
80,593

 
86,947

 
81,939

 
89,641

Effect of stock options (1)
817

 
1,078

 
902

 
1,228

Weighted-average common shares outstanding – assuming dilution
81,410

 
88,025

 
82,841

 
90,869

 
 
 
 
 
 
 
 
Earnings per share:
 
 
 
 
 
 
 
Earnings per share-basic
$
4.54

 
$
3.26

 
$
12.50

 
$
9.28

Earnings per share-assuming dilution
$
4.50

 
$
3.22

 
$
12.36

 
$
9.15

 
 
 
 
 
 
 
 
Antidilutive potential common shares not included in the calculation of diluted earnings per share:
 
 
 
 
 
 
 
Stock options (1)
650

 
784

 
232

 
620

Weighted-average exercise price per share of antidilutive stock options (1)
$
264.65

 
$
246.65

 
$
268.22

 
$
258.75


(1) 
See Note 7 for further information concerning the terms of the Company’s share-based compensation plans.