Recent Accounting Standards (Details) - USD ($) $ in Thousands	Jul. 04, 2020	Sep. 29, 2019	Sep. 28, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset	$ 79,640		$ 0
Present value of total lease liabilities	84,057
Finance lease, right-of-use asset	$ 723		$ 0
Accounting Standards Update 2016-02 | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset		$ 90,400
Finance lease, right-of-use asset		1,000
Present value of total lease liabilities		900
Accounting Standards Update 2016-02 | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Present value of total lease liabilities		$ 93,500