Consolidated Statements of Financial Condition (Parenthetical) - $ / shares shares in Thousands	Dec. 31, 2021	Dec. 31, 2020
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	750,000	750,000
Common stock, shares issued (in shares)	435,944	373,545
Common stock, shares outstanding (in shares)	317,023	323,018
Treasury stock, at cost (in shares)	118,921	50,527
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	150,000	150,000
Common stock, shares issued (in shares)	45,884	45,884
Common stock, shares outstanding (in shares)	45,884	45,884