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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Mar. 31, 2024
Dec. 31, 2023
Stockholders’ equity    
Capital Stock, par value (in dollars per share) $ 1 $ 1
Preferred stock, shares authorized (in shares) 1,000,000 1,000,000
Preferred stock, shares issued (in shares) 0 0
Common Stock    
Stockholders’ equity    
Common stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, shares issued (in shares) 30,316,000 30,220,000
Treasury stock, shares (in shares) 15,355,000 15,355,000
Class A Common Stock    
Stockholders’ equity    
Common stock, shares authorized (in shares) 15,000,000 15,000,000
Common stock, shares issued (in shares) 1,798,000 1,804,000
Treasury stock, shares (in shares) 522,000 522,000