Business Acquisitions - Purchase Price Allocations for Business Acquisitions (Detail) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016
Business Combinations [Abstract]
Accounts receivable	$ 17,108	$ 22,871
Inventories	25,232	9,493
Other current assets	677	732
Property and equipment	29,492	24,119
Goodwill	58,528	32,570
Other intangible assets	72,050	64,130
Accounts payable	(7,986)	(16,216)
Accrued expenses and other current liabilities	(5,837)	(12,173)
Deferred income taxes	(7,277)
Long-term debt		(2,514)
Cash paid for acquisitions	$ 181,987	$ 123,012