Subsequent Events	9 Months Ended
Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	11. Subsequent Events In October 2020, we implemented changes to our organizational structure. In connection with the reorganization, we will provide employees one-time severance payments upon termination, continued benefits for a specified period of time, outplacement services and certain stock option modifications. We expect to incur total expenses of $5.6 million, $2.5 million of which is primarily for severance and $3.1 million for non-cash, stock-based compensation expense related to stock option modifications. We expect that the cash payments due under the reorganization will be substantially complete by the end of 2020.

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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