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Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]      
Cash dividends declared on common stock (in dollars per share) $ 0.56 $ 0.54 $ 0.50