Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
CURRENT ASSETS
Cash and cash equivalents	$ 339,439	$ 171,160
Short-term investments	96,392	118,955
Accounts and other receivable	2,585	0
Inventories	3,976	0
Prepaid expenses and other current assets	7,713	6,487
Total current assets	450,105	296,602
Property and equipment, net	14,843	14,755
Goodwill	144,505	0
Net Carrying Amount	74,849	0
Operating lease right of use assets	25,446	26,531
Restricted cash	1,245	730
Other non-current assets	1,154	1,669
TOTAL ASSETS	712,147	340,287
CURRENT LIABILITIES
Accounts payable	7,860	8,010
Accruals and other current liabilities	37,659	18,636
Deferred revenue, current portion	10,931	7,911
Operating lease liabilities, current portion	4,040	3,470
Derivative liability	3,163	2,952
Total current liabilities	63,653	40,979
Convertible senior notes	177,377	0
Deferred revenue, net of current portion	74,811	47,948
Operating lease liabilities, net of current portion	23,453	25,870
TOTAL LIABILITIES	339,294	114,797
Commitments and Contingencies (Note 14)
STOCKHOLDERS’ EQUITY
Convertible preferred stock, par value $0.001 per share — 5,000,000 shares authorized, and no shares issued and outstanding as of September 30, 2020 and December 31, 2019	0	0
Common stock, par value $0.001 per share — 95,000,000 shares authorized both as of September 30, 2020 and December 31, 2019; 66,587,713 and 52,374,735 shares issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	67	52
Additional paid-in capital	1,420,770	1,069,639
Accumulated other comprehensive income	0	3
Accumulated deficit	(1,047,984)	(844,204)
TOTAL STOCKHOLDERS’ EQUITY	372,853	225,490
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 712,147	$ 340,287