Acquisition and Disposition of Businesses - Additional Information (Details) - USD ($) $ in Thousands			2 Months Ended	3 Months Ended
	Dec. 08, 2017	Nov. 07, 2017	Dec. 30, 2017	Dec. 30, 2017	Dec. 24, 2016
Business Acquisition And Dispositions [Line Items]
Business acquisition, cost of acquired, cash paid		$ 4,871
Cash paid to acquire business			$ 4,051	$ 4,051	$ 0
Business disposition, sales price	$ 2,800
Loss on sale of certain assets and operations				$ 4,823	$ 0
Non-compete Agreements [Member]
Business Acquisition And Dispositions [Line Items]
Business acquisition, cost of acquired, cash paid		$ 750