Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)

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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares
Jun. 30, 2023
Dec. 31, 2022
Convertible preferred stock issued 0 0
Class A Common Stock    
Common stock, par value (usd per share) $ 0.01 $ 0.01
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 68,422,889 67,574,922
Common stock, shares outstanding 23,407,137 24,204,324
Treasury stock, shares 45,015,752 43,370,598
Class B common stock    
Common stock, par value (usd per share) $ 0.01  
Common stock, shares authorized 30,000,000  
Common stock, shares issued 12,029,375