Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 28,242	$ (175,218)
Adjustments to reconcile net income (loss) to net cash flow from operating activities
Stock-based compensation	19,371	15,209
Depreciation and amortization	6,390	5,235
Accretion of note premiums/discounts	(1,215)	(5,704)
Realized gain on investments	(19)	0
Non-cash interest expense on liability related to the sale of future royalties	7,600	5,415
Non-cash interest expense on credit facility	14,905	16,231
Changes in operating assets and liabilities:
Accounts receivable	(212,046)	(2,500)
Inventory	(451)	0
Prepaid expenses and other current assets	(13,182)	(592)
Accounts payable	15,263	3,069
Accrued expenses	(13,501)	(7,691)
Deferred revenue	163,359	0
Operating lease, net	(1,211)	(1,128)
Other	(24)	1,402
Net cash provided by (used in) operating activities	13,481	(146,272)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(2,148)	(7,516)
Purchases of investments	(136,933)	(33,749)
Proceeds from sales and maturities of investments	115,339	118,175
Net cash (used in) provided by investing activities	(23,742)	76,910
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from the exercises of stock options	5,098	634
Proceeds from the issuance of pre-funded warrants	0	25,000
Payments of debt issuance costs	0	(5,000)
Proceeds from the issuance of common stock, net of issuance costs paid	46,832	0
Repayments of credit facility	(66,680)	0
Net cash (used in) provided by financing activities	(14,750)	20,634
Net decrease in cash, cash equivalents and restricted cash	(25,011)	(48,728)
Effect of exchange rate on cash, cash equivalents and restricted cash	106	(68)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
BEGINNING OF PERIOD	226,548	102,685
END OF PERIOD	201,643	53,889
Supplemental disclosure of cash flows:
Income taxes paid	(9,907)	(11)
Supplemental disclosure of non-cash investing activities:
Capital expenditures included in accrued expenses	$ 159	$ 2,574