Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 674,493	$ 76,644
Accounts receivable, net	3,570	0
Marketable securities	10,435	2,997
Inventory	2,611	0
Prepaid expenses and other current assets	13,536	8,269
Total current assets	704,645	87,910
Property and equipment, net	3,300	2,497
Operating lease right-of-use asset	9,655	11,146
Other assets	7,427	4,373
Total assets	725,027	105,926
Current liabilities:
Accounts payable	17,809	15,334
Accrued expenses and other current liabilities	44,612	29,060
Share-based compensation liabilities	21,636	0
Amounts due to collaboration partner	1,954	0
Cost share advance from collaboration partner	92,415	0
Operating lease liability	1,807	1,516
Amounts due to related parties	543	15
Total current liabilities	281,340	85,925
Deferred revenue, non-current	397,369	0
Cost share advance from collaboration partner, non-current	29,447	0
Long-term operating lease liability	9,189	10,996
Long-term debt, less current maturities (related party)	358,700	113,700
Other	2,947	3,582
Total liabilities	1,078,992	214,203
Commitments and contingencies (Note 14)
Shareholders’ deficit:
Common shares, par value $0.000017727 per share, 564,111,242 shares authorized, 91,000,869 and 89,833,998 issued and outstanding at March 31, 2021 and 2020, respectively	2	2
Additional paid-in capital	709,466	684,381
Accumulated other comprehensive loss	(17,285)	(1,646)
Accumulated deficit	(1,046,148)	(791,014)
Total shareholders’ deficit	(353,965)	(108,277)
Total liabilities and shareholders’ deficit	725,027	105,926
License and milestone revenue
Current liabilities:
Deferred revenue	$ 100,564	$ 40,000