Leases - Supplemental Balance Sheet Schedule (Details) - USD ($) $ in Thousands	Jun. 26, 2020	Sep. 28, 2019
Right-of-use assets
Operating lease assets	$ 718,161	$ 767,000
Lease Liabilities
Operating lease liabilities, current	152,438	180,700
Operating lease liabilities, noncurrent	769,374	$ 810,100
Total lease liabilities	$ 921,812