Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
CURRENT ASSETS
Cash and cash equivalents	$ 184,434	$ 143,583
Accounts receivable	10,255	846
Prepaid expenses	4,362	4,251
Other current assets	2,191	1,782
Marketable securities	126,728	85,020
Short term investments	56,627	86,890
TOTAL CURRENT ASSETS	384,597	322,372
Property and equipment, net	48,675	30,881
Intangible assets, net	13,663	15,363
Long term investments	245,595	137,487
Right-of-use assets	17,346	16,137
Other assets	272	264
TOTAL ASSETS	710,148	522,504
CURRENT LIABILITIES
Accounts payable	9,457	6,829
Accrued expenses	14,001	5,389
Accrued payroll and benefits	9,773	8,061
Lease liabilities	2,250	1,095
Deferred revenue	111,055	19,291
Other current liabilities		17
TOTAL CURRENT LIABILITIES	146,536	40,682
LONG-TERM LIABILITIES
Lease liabilities, net of current portion	23,295	20,043
Deferred revenue, net of current portion	131,495
TOTAL LONG-TERM LIABILITIES	154,790	20,043
Commitments and contingencies (Note 7)
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value; 145,000 shares authorized; 104,327 and 102,376 shares issued and outstanding as of September 30, 2021 and September 30, 2020, respectively	197	195
Additional paid-in capital	1,053,386	965,410
Accumulated other comprehensive income (loss)	(69)	18
Accumulated deficit	(644,692)	(503,844)
TOTAL STOCKHOLDERS’ EQUITY	408,822	461,779
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 710,148	$ 522,504