CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (unaudited) (Parenthetical) - $ / shares			3 Months Ended		6 Months Ended
		Dec. 16, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Common stock, par or stated value per share (in dollars per share)			$ 1		$ 1		$ 1
Cash dividends paid (in dollars per share)	[1]		$ 0.16	$ 0.15	$ 0.32	$ 0.29
Dividend percent		10.00%

[1] All share and per share amounts have been restated to reflect the ten percent stock dividend paid December 16, 2019 to shareholders of record as of December 9, 2019.