Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts receivable, allowance for credit losses	$ 2,823	$ 3,775
Treasury stock, shares	5,873,180	3,959,083
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	68,518,779	61,986,927
Common stock, shares outstanding	62,645,599	58,027,844
Treasury stock, shares	5,873,180	3,959,083
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	4,686,344	5,948,750
Common stock, shares outstanding	4,686,344	5,948,750