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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Statement of Stockholders' Equity [Abstract] |  |  |  |  |  |
Cash dividends declared on common stock (in dollars per share) | $ 0.10 | $ 0.10 | $ 0.09 | $ 0.08 | $ 0.20 | $ 0.17
Repurchase and retirement of common stock (in shares) | 270,535 | 837,015 | 415,889 | 81,500 | 1,107,550 | 497,389

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