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Subsequent Events | 12 Months Ended
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Dec. 31, 2019
Subsequent Events [Abstract] |
Subsequent Events | Subsequent Events On February 7, 2020, the Company entered into an amendment to the Sales Agreement, which amendment increased the amount of common stock that could be sold by the Company under the Sales Agreement from an aggregate offering price of up to $100.0 million to an aggregate offering price of up to $200.0 million. On March 9, 2020, the Company entered into a second amendment to the Sales Agreement, which amendment increased the amount of common stock that could be sold by the Company under the Sales Agreement from an aggregate offering price of up to $200.0 million to an aggregate offering price of up to $250.0 million. Under the Sales Agreement, as amended, the Company set the parameters for the sale of shares, including the number of shares to be issued, the time period during which sales were requested to be made, limitation on the number of shares that could be sold in any one trading day and any minimum price below which sales could not be made. The Sales Agreement provided that the Placement Agent is entitled to compensation for its services in an amount equal to up to 3.0% of the gross proceeds from the sales of shares sold through the Placement Agent under the Sales Agreement. From January 1, 2020 through March 11, 2020, the Company sold 43,148,952 shares of common stock under its Sales Agreement for net proceeds of $208.2 million. The sales were made at a weighted average price of $4.92 per share. As of the date these financial statements were issued, there is no remaining capacity under the Sales Agreement, as amended. On February 20, 2020, the Company entered into a Debt and Share Subscription Agreement with PLS under which the Company will receive shares of PLS common stock in exchange for a portion of the outstanding accounts receivable balance due from PLS. Following the issuance of these shares, the Company will hold a 19.9% ownership interest in PLS.

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 + Details
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