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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Mar. 31, 2020
Dec. 31, 2019
Statement Of Financial Position [Abstract]    
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 10,000,000.0 10,000,000.0
Preferred stock, issued 0 0
Preferred stock, outstanding 0 0
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares authorized 200,000,000.0 200,000,000.0
Common stock, issued 75,400,000 63,900,000
Common stock, outstanding 75,400,000 63,900,000