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Stockholders' Equity (Dividends) (Details) - Subsequent Event $ / shares in Units, $ in Millions | Feb. 09, 2019 USD ($) $ / shares
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Class of Stock [Line Items] |
Dividends on common stock | $ | $ 1.5
Cash dividend, per share | $ / shares | $ 0.03
Dividends payable, date of record | Jan. 22, 2019

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