Balance Sheet Components - Finite-lived intangible assets, future amortization expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Oct. 01, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 31,931
Accumulated Amortization	(11,701)
Net Carrying Value	20,218
Finite lived intangible assets, impact	(12)
In-process research and development and other intangible assets not subject to amortization, impact	(1,980)
In-process research and development and other intangible assets not subject to amortization, Net	69,791	$ 64,680
Intangible assets, gross carrying amount (excluding goodwill)	103,690
Intangible assets, net carrying value (excluding goodwill)	$ 90,009
Weighted-Average Remaining Life	4 years 10 months 17 days
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2024	$ 5,969
2025	3,367
2026	3,038
2027	3,022
2028 and thereafter	4,822
Net Carrying Value	20,218
In-process research and development and other intangible assets not subject to amortization
Finite-Lived Intangible Assets [Line Items]
In-process research and development and other intangible assets not subject to amortization, impact	(1,968)
In-process research and development and other intangible assets not subject to amortization, Net	69,791
Indefinite-lived intangible assets (excluding goodwill)	71,759
Tradename
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	451
Accumulated Amortization	(113)
Net Carrying Value	326
Finite lived intangible assets, impact	$ (12)
Weighted-Average Remaining Life	4 years 6 months
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Net Carrying Value	$ 326
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	31,480
Accumulated Amortization	(11,588)
Net Carrying Value	$ 19,892
Weighted-Average Remaining Life	4 years 10 months 20 days
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Net Carrying Value	$ 19,892