Geographic and Significant Customer Information - Summary of Different Geographic Regions (Details) - USD ($) $ in Thousands	Jul. 03, 2020	Sep. 27, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 122,000	$ 132,647
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	103,389	116,037
Other Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 18,611	$ 16,610