Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 04, 2020	Dec. 29, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 3,268	$ 11,889
Effective Income Tax Rate Reconciliation, Percent	9.50%	34.90%
Tax Cuts & Jobs Act of 2017, Income tax expense (benefit)	$ (1,900)	$ 7,000
Other Tax Expense (Benefit)	$ 1,100