v3.19.3.a.u2
Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2019
Dec. 31, 2018
Statement Of Financial Position [Abstract]    
Preferred stock par value $ 0.001 $ 0.001
Preferred stock shares authorized 100,000,000 100,000,000
Preferred stock shares issued 0 0
Preferred stock shares outstanding 0 0
Common stock par value $ 0.001 $ 0.001
Common stock shares authorized 2,000,000,000 2,000,000,000
Common stock shares issued 181,000,000 173,000,000
Common stock shares outstanding 181,000,000 173,000,000