Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical)

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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares
3 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Dec. 31, 2018
Sep. 30, 2018
Statement of Stockholders' Equity [Abstract]        
Cash dividends declared (in dollars per share) $ 0.85 $ 0.75 $ 0.75 $ 0.75