Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 260,642	$ 277,544
Accounts receivable--related party	0	185
Prepaid expenses and other current assets	3,446	4,709
Total current assets	264,088	282,438
Property and equipment, net	23,167	14,643
Operating lease right-of-use asset	21,398	20,358
Goodwill	19,462	19,462
Restricted cash	0	150
Other non-current assets	1,789	1,887
Total assets	329,904	338,938
Current liabilities:
Accounts payable	4,146	3,263
Contract liabilities — related party, current	0	4,805
Accrued and other current liabilities	9,991	6,682
Operating lease liability	2,261	1,567
Total current liabilities	16,398	16,317
Operating lease liability, net of current portion	20,124	19,377
Other non-current liabilities	115	115
Total liabilities	36,637	35,809
Stockholders’ equity:
Preferred stock, $0.0001 par value, 10,000,000 shares authorized as of June 30, 2022 and December 31, 2021, respectively; none issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	0	0
Common stock, $0.0001 par value, 150,000,000 shares authorized as of June 30, 2022 and December 31, 2021, respectively; 40,020,755 and 39,736,914 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	4	4
Additional paid-in capital	479,507	471,449
Accumulated deficit	(186,244)	(168,324)
Accumulated other comprehensive income	0	0
Total stockholders’ equity	293,267	303,129
Total liabilities and stockholders’ equity	$ 329,904	$ 338,938