Leases Schedule of Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 04, 2020	Sep. 29, 2019	Sep. 28, 2019
Assets and Liabilities, Leases [Abstract]
Finance lease right-of-use asset	$ 36,227
Operating lease right-of-use assets	74,371	$ 75,790	$ 0
Total lease assets	110,598
Current finance lease liabilitlies	2,372
Current operating lease liabilities	8,545
Long-term finance lease liabilities	36,532
Long-term operating lease liabilities	39,617	$ 37,371	$ 0
Total lease liabilities	$ 87,066