Consolidated Balance Sheets - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2025	Sep. 30, 2025
Current assets:
Cash, cash equivalents and restricted cash	$ 201,643	$ 226,548
Accounts receivable	218,871	6,824
Available-for-sale securities, at fair value and short-term investments	714,967	692,818
Prepaid expenses	16,053	10,933
Other current assets	22,855	13,516
Total current assets	1,174,389	950,639
Property, plant and equipment, net	378,584	382,515
Intangible assets, net	6,436	6,861
Right-of-use assets	43,361	43,891
Other assets	1,411	1,389
Total Assets	1,604,181	1,385,295
Current liabilities:
Accounts payable	32,937	17,674
Accrued expenses	130,081	90,419
Accrued payroll and benefits	14,270	26,895
Lease liabilities	7,529	7,289
Deferred revenue	111,933	2,399
Credit facility	40,000	40,000
Other liabilities	10,675	10,811
Total current liabilities	347,425	195,487
Long-term liabilities:
Lease liabilities, net of current portion	102,129	104,112
Deferred revenue, net of current portion	53,825	0
Liability related to the sale of future royalties	374,997	367,397
Credit facility, net of current portion	163,108	214,883
Total long-term liabilities	694,059	686,392
Commitments and contingencies (Note 7)
Noncontrolling interest and stockholders’ equity:
Common stock, $0.001 par value: Authorized 290,000 shares; 140,052 shares issued and 137,391 outstanding as of December 31, 2025 and 138,363 shares issued and 135,702 outstanding as of September 30, 2025	233	231
Additional paid-in capital	2,211,026	2,139,725
Accumulated other comprehensive income	6,699	6,443
Accumulated deficit	(1,596,343)	(1,627,154)
Treasury stock; at cost; 2,661 shares of common stock at December 31, 2025 and September 30, 2025	(53,193)	(53,193)
Stockholders’ equity	568,422	466,052
Noncontrolling interest	(5,725)	37,364
Total noncontrolling interest and stockholders’ equity	562,697	503,416
Total Liabilities, Noncontrolling Interest and Stockholders’ Equity	$ 1,604,181	$ 1,385,295
Common stock, shares issued (in shares)	140,052	138,363
Consolidated Entity Excluding Variable Interest Entities (VIE)
Current assets:
Cash, cash equivalents and restricted cash	$ 71,370	$ 88,706
Variable Interest Entity, Primary Beneficiary
Current assets:
Cash, cash equivalents and restricted cash	$ 130,273	$ 137,842