CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities
Net income (loss)	$ (17,632)	$ 2,153,624
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	63,443	38,813
Stock-based compensation	10,091	10,715
Contingent consideration adjustment	(18,549)	600
Amortization and accretion on marketable securities	(6,942)	(7,048)
Deferred income taxes	(25,149)	24,207
Loss on extinguishment of debt		632
Purchase accounting impact on inventory	8,737
(Gain) loss on disposals of property, plant and equipment	37	(100)
Gain on divestiture, net of tax		(2,128,761)
Fees paid stemming from divestiture		(52,461)
Taxes paid stemming from divestiture		(431,600)
Changes in operating assets and liabilities:
Accounts receivable	29,028	(16,298)
Inventories	(4,104)	(61,345)
Accounts payable	(13,193)	(8,320)
Deferred revenue	2,496	8,580
Accrued warranty and retrofit costs	1,412	(28)
Accrued compensation and tax withholdings	(15,830)	13,835
Accrued restructuring costs	311	(126)
Other current assets and liabilities	(36,578)	(19,999)
Net cash used in operating activities	(22,422)	(475,680)
Cash flows from investing activities
Purchases of property, plant and equipment	(29,218)	(59,730)
Purchases of technology intangibles		(4,000)
Purchases of marketable securities	(236,194)	(1,525,993)
Sales and maturities of marketable securities	951,504	503,505
Proceeds from divestiture, net of cash transferred		2,926,286
Net Investment hedge settlement	29,313
Acquisitions, net of cash acquired	(386,508)
Net cash provided by investing activities	328,897	1,840,068
Cash flows from financing activities
Proceeds from issuance of common stock		3,461
Principal payments on debt		(49,725)
Common stock dividends paid		(7,494)
Payment for contingent consideration related to acquisition		(10,400)
Payment of finance leases	(181)	(355)
Stock repurchase	(672,116)
Withholding tax payments on net share settlements on equity awards	(4,924)
Net cash used in financing activities	(677,221)	(64,513)
Effects of exchange rate changes on cash and cash equivalents	65,610	(98,972)
Net (decrease) increase in cash, cash equivalents and restricted cash	(305,136)	1,200,903
Cash, cash equivalents and restricted cash, beginning of period	1,041,296	285,333
Cash, cash equivalents and restricted cash, end of period	736,160	1,486,236
Supplemental disclosures:
Cash paid for income taxes, net	$ 41,064	$ 452,461