Supplemental Financial Information Supplemental Financial Information - Equity Investment in Affiliate (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019	Sep. 28, 2019
Schedule of Equity Method Investments [Line Items]
Equity investment in affiliate	$ 11,946		$ 11,946		$ 11,106
Equity in net income of non-consolidated affiliate	$ 960	$ 842	$ 840	$ 1,158
Micro Bird Holdings Inc.
Schedule of Equity Method Investments [Line Items]
Equity interest in equity method investment (as a percent)	50.00%		50.00%
Equity investment in affiliate	$ 11,900		$ 11,900		$ 11,100
Equity in net income of non-consolidated affiliate			$ 800	$ 1,200

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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