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Unaudited Condensed Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Sep. 30, 2019	Dec. 31, 2018
Common stock, shares, outstanding	77,802,278	76,942,872
Class A Common Stock
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares, outstanding	56,261,026
Class B Common Stock
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares, outstanding	7,853,364	8,645,249
Class C Common Stock
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares, outstanding	13,687,888	14,226,435

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Face amount or stated value per share of common stock.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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