Consolidated Statements of Shareholders' Equity (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares
Statement of Stockholders' Equity [Abstract]
Tax effect on employee benefit funded status adjustment | $	$ (197)	$ (112)	$ 69
Cash dividends (in dollars per share)	$ 0.85	$ 0.76	$ 0.70
Issuance of treasury stock (in shares) | shares	24	19	22
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1