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UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)
Sep. 30, 2023
$ / shares
shares
Dec. 31, 2022
$ / shares
shares
Class A Common Stock    
Common stock, par value (in dollars per share) | $ / shares $ 1 $ 1
Common stock, shares outstanding (in shares) | shares 5,939,643 5,782,944
Class B Common Stock    
Common stock, par value (in dollars per share) | $ / shares $ 1 $ 1
Common stock, shares outstanding (in shares) | shares 1,565,819 1,566,129
Common stock, convertible conversion ratio 1 1