Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Cash and cash equivalents	$ 402,391	$ 113,216
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, authorized	100,000,000	100,000,000
Preferred stock, shares issued	0	0
Preferred stock, outstanding	0	0
Common stock, authorized	1,250,000,000	1,250,000,000
Joint Venture
Cash and cash equivalents	$ 3,382	$ 3,406
Class A Common Stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, authorized	1,000,000,000	1,000,000,000
Common stock, issued	304,933,000	207,769,000
Common stock, outstanding	304,933,000	207,769,000
Class B Common Stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, authorized	250,000,000	250,000,000
Common stock, issued	109,607,000	156,225,000
Common stock, outstanding	109,607,000	156,225,000