Consolidated Statements of Shareholders' Equity (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares
Statement of Stockholders' Equity [Abstract]
Tax effect on employee benefit funded status adjustment | $	$ 26	$ 197	$ 112
Cash dividends (in dollars per share)	$ 0.99	$ 0.85	$ 0.76
Issuance of treasury stock (in shares) | shares	24,000	24,000	19,000
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1