CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDER'S EQUITY (Parenthetical) - $ / shares |
12 Months Ended | |
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Dec. 31, 2020 |
Dec. 31, 2019 |
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| Statement Of Stockholders Equity [Abstract] | ||
| Common stock dividends per share | $ 40,050 | $ 35,010 |
| 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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