Leases (Schedule of Components of lease assets and liabilities) (Details) - USD ($) $ in Thousands	Sep. 28, 2021	Sep. 29, 2020
Lessee Disclosure [Abstract]
Right-of-use assets	$ 45,737	$ 49,252
Current lease liabilities	4,935	4,689
Non-current lease liabilities	49,723	53,731
Total lease liabilities	$ 54,658	$ 58,420