Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares |
3 Months Ended | |||||
|---|---|---|---|---|---|---|
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
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| Statement of Stockholders' Equity [Abstract] | ||||||
| Cash dividends declared (in dollars per share) | $ 0.75 | $ 0.75 | $ 0.75 | $ 0.59 | $ 0.59 | $ 0.59 |
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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