Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Repurchased of common stock shares	$ 315,851		$ 200,000
Initial delivery of shares under accelerated share repurchase agreement, shares		3,611,870
Net settlement of accelerated share repurchase agreement, shares	1,001,472
Retained Earnings [Member]
Cash dividends declared, per common share	$ 1.08	$ 1.08	$ 1.02

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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