Consolidated Condensed Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	80,000,000	40,000,000
Common stock, shares issued (in shares)	37,221,098	37,221,098
Treasury stock, shares (in shares)	7,903,197	7,928,071