Consolidated Balance Sheets (Parenthetical)	Dec. 31, 2020 $ / shares shares
Statement Of Financial Position [Abstract]
Preferred stock, par value | $ / shares	$ 0.0001
Preferred stock, shares authorized	50,000,000
Preferred stock, shares issued	0
Preferred stock, shares outstanding	0
Common stock, par value | $ / shares	$ 0.0001
Common stock, shares authorized	500,000,000
Common stock, shares issued	231,262,000
Common stock, shares outstanding	231,261,958
Cumulative non-voting convertible preferred stock par value | $ / shares	$ 0.01
Cumulative non-voting convertible preferred shares authorized	3,000
Cumulative non-voting convertible preferred shares issued	1,000
Cumulative non-voting convertible preferred shares outstanding	1,000