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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Dec. 31, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Common stock, par value (in USD per share) $ 1.00 $ 1.00
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 25,413,000 25,413,000
Common stock, shares outstanding (in shares) 15,911,000 15,664,000
Treasury stock, shares (in shares) 9,502,000 9,749,000