Subsequent Event	9 Months Ended
Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Event	9. Subsequent Event On November 10, 2020, the Company entered into an Open Market Sale Agreement^SMwith Jefferies LLC, or Jefferies, pursuant to which the Company may offer and sell shares of its common stock having an aggregate sales proceeds of up to $125.0 million, from time to time, through an at-the-market equity offering program under which Jefferies acts as sales agent.

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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