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Capital Stock and Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Schedule of Common Shares Share information regarding the Company's common stock at December 31, was as follows:
 
2019
 
2018
Common stock shares:
 
 
 
Authorized
800,000,000

 
800,000,000

Issued
182,816,536

 
181,931,225

Outstanding
152,468,442

 
159,657,947

 
 
 
 
Treasury stock shares
30,348,094

 
22,273,278


Reconciliation of Earnings Per Share Basic and Diluted The computation of basic and diluted earnings per share for the years ended December 31, was as follows (in thousands except per share amounts): 
 
2019
 
2018
 
2017
Net income
$
423,635

 
$
531,451

 
$
521,759

 
 
 
 
 
 
Basic weighted-average shares outstanding
157,054

 
165,672

 
171,995

Effect of dilutive securities – employee stock compensation plan
750

 
832

 
937

Diluted weighted-average shares outstanding
157,804

 
166,504

 
172,932

Earnings per share:
 
 
 
 
 
Basic
$
2.70

 
$
3.21

 
$
3.03

Diluted
$
2.68

 
$
3.19

 
$
3.02