Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	May 07, 2020	Mar. 31, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Sale of stock, number of shares issued in transaction (in shares)		87,019,172
At-The-Market Offering
Subsequent Event [Line Items]
Sale of stock, number of shares issued in transaction (in shares)		598,977	615,453
Share price (in dollars per share)		$ 2.11	$ 1.84
At-The-Market Offering | Subsequent Event
Subsequent Event [Line Items]
Sale of stock, number of shares issued in transaction (in shares)	470,509
Share price (in dollars per share)	$ 2.21
Net proceeds on shares issued	$ 1.0