Leases Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Cash paid for amounts included in measurement of lease liabilities:
Operating cash flows from operating leases	$ 4,486
Operating cash flows from finance leases	1,116
Financing cash flows from finance leases	871	$ 518
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for new lease liabilities	157
Financing lease assets obtained in exchange for new lease liabilities	$ 586