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Note 6 - Capital Stock
 6 Months Ended
Jun. 30, 2021
Notes to Financial Statements  
Stockholders' Equity Note Disclosure [Text Block]

6.

Capital Stock

 

On April 20, 2017, our Board of Directors authorized the purchase of up to $500 million of our common stock. On January 22, 2020, our Board of Directors authorized an additional purchase of up to $500 million of our common stock. At June 30, 2021, $416 million of the most recent authorization was remaining. We purchased approximately 518,000 shares, or $86.6 million, of our common stock under our repurchase authorization during the six months ended June 30, 2021, of which 484,000 shares, or $81.3 million, were purchased in second quarter 2021. On January 21, 2021, we announced an increase in our quarterly cash dividend from $0.27 to $0.28 per common share, which was paid February 19, 2021, to stockholders of record on February 5, 2021. On April 22, 2021, we announced an increase in our quarterly cash dividend from $0.28 to $0.30 per common share, which was paid on May 21, 2021, to stockholders of record on May 7, 2021. On July 21, 2021, our Board of Directors declared a regular quarterly dividend of $0.30 per common share, which will be paid on August 20, 2021, to stockholders of record on August 6, 2021.