CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Convertible preferred stock, par value (in USD per share)	$ 0.01	$ 0.01
Convertible preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	295,000,000	295,000,000
Common stock, shares issued (in shares)	215,752,926	199,502,183
Common stock, shares outstanding (in shares)	215,631,426	199,380,683
Treasury stock (in shares)	121,500	121,500
Series A Preferred Stock
Convertible preferred stock, shares issued (in shares)	7	7
Convertible preferred stock, shares outstanding (in shares)	7	7
Series B Preferred Stock
Convertible preferred stock, shares issued (in shares)	54,745	54,745
Convertible preferred stock, shares outstanding (in shares)	54,745	54,745

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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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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