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Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]      
Cash dividends declared per share (usd per share) $ 0.40 $ 0.32 $ 0.32