Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
RETAINED EARNINGS:
Cash dividends declared on common stock, per share	$ 0.34	$ 0.32	$ 1.00	$ 0.96