Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consolidated Statement of Changes in Stockholders' Equity [Abstract]
Percentage of stock dividend	1.00%	1.00%	1.00%
Purchase of treasury stock (in shares)	40,438	21,551	18,943
Sale of treasury stock (in shares)	2,418
Cash dividends (in dollars per share)	$ 1.92	$ 1.76	$ 1.71

The percentage rate used to calculate dividend payments on common stock.

No definition available.

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

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- Definition

Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.

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Number of shares that have been repurchased during the period and are being held in treasury.

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