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Balance Sheet Details - Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 396,142	$ 416,315
Accumulated Amortization	(245,173)	(216,027)
Net Carrying Amount	150,969	200,288
Developed Technology Rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	319,368	319,436
Accumulated Amortization	(190,135)	(151,332)
Net Carrying Amount	129,233	168,104
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	45,642	46,142
Accumulated Amortization	(33,298)	(25,630)
Net Carrying Amount	12,344	20,512
Patents And Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,699	23,504
Accumulated Amortization	(9,658)	(19,255)
Net Carrying Amount	4,041	4,249
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	15,473	24,973
Accumulated Amortization	(10,122)	(17,550)
Net Carrying Amount	5,351	7,423
Non-Compete Covenants [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,960	2,260
Accumulated Amortization	(1,960)	(2,260)
Net Carrying Amount	$ 0	$ 0

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