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Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Consolidated Statements of Shareholders' Equity        
Payable/Cash Dividends (in dollars per share) $ 0.55 $ 0.55 $ 1.10 $ 1.05
Purchase of treasury stock (in shares) 740,598 516,973 1,946,228 3,258