The Business, Basis of Presentation and Summary of Significant Accounting Policies - Corporate Restructuring (Details) $ in Millions	1 Months Ended
Jul. 31, 2018 USD ($)
Accounting Policies [Abstract]
Reduction of workforce	60.00%
Severance costs	$ 0.8
Non-cash stock-based compensation charges	$ 0.1

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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