Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for credit losses	$ 46	$ 0
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	100,000,000	0
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	1,000,000,000	164,063,787
Common stock, shares issued	187,273,782	164,063,787
Common stock, shares outstanding	187,273,782	164,063,787