Restructuring Plan - Summary of Restructuring and Related Costs (Details) $ in Thousands	3 Months Ended
Jan. 02, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Employee related costs	$ 190
Gain on early termination of facility lease	(2,801)
Total	(2,611)
Restructuring charges	(2,611)
Research and development
Restructuring Cost and Reserve [Line Items]
Total	25
Restructuring charges	25
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Total	(2,636)
Restructuring charges	$ (2,636)

For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

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