Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)

v3.21.2
CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares
Jun. 30, 2021
Dec. 31, 2020
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 66,448,546 65,607,628
Common stock, shares outstanding 29,680,414 29,797,727
Treasury stock, shares 36,768,132 35,809,901
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