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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	137,500,000	137,500,000
Class A
Common stock, shares authorized	12,500,000	12,500,000
Common stock, shares issued	4,661,000	4,661,000
Common stock, shares outstanding	4,661,000	4,661,000
Class B
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	36,804,000	36,462,000
Common stock, shares outstanding	36,804,000	36,462,000
Restricted stock, shares outstanding	1,042,000	1,007,000

X

- Definition

Total number of shares of unvested restricted common stock held by shareholders.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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