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Stockholders' Equity Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2020
Stockholders' Equity Attributable to Parent [Abstract]  
Quarterly dividends declared [Table Text Block]
The Board declared quarterly dividends as follows:
(amounts per share)
2020

 
2019

 
 
 
 
First quarter
$
0.40

 
$
0.30