Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Apr. 04, 2020	Jan. 04, 2020	Mar. 30, 2019	Dec. 29, 2018	Apr. 04, 2020	Mar. 30, 2019
Income Tax Disclosure [Abstract]
Income tax expense	$ 1,156		$ 3,938		$ 4,424	$ 15,827
Effective Income Tax Rate Reconciliation, Percent	8.20%		13.70%		9.10%	25.20%
Tax Cuts & Jobs Act of 2017, Income tax expense (benefit)		$ (1,900)		$ 7,000
Other Tax Expense (Benefit)	$ (600)	(800)
Special Tax Items Expense (Benefit)		$ 1,100