Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Preferred Stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred Stock, par value (in usd per share)	$ 0.001
Common Stock, par value (in usd per share)	$ 0.001	$ 0.001
Common Stock, shares authorized (in shares)	235,000,000	235,000,000
Common Stock, shares issued (in shares)	102,057,290	101,417,441
Common Stock, shares outstanding (in shares)	98,791,606	101,354,447
Treasury stock, shares (in shares)	3,265,684	62,994
Preferred Stock Series B
Preferred Stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred Stock, shares outstanding (in shares)	443	443

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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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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