Business Acquisitions and Investments - Summary of Preliminary Fair Value of Total Consideration (Detail) - USD ($) $ in Thousands		6 Months Ended
	Oct. 26, 2017	Jun. 30, 2018	Jul. 01, 2017
Business Acquisition [Line Items]
Cash consideration (net of $3.3 million cash acquired)		$ 564	$ 3,127
MAS Automotive Distribution Inc [Member]
Business Acquisition [Line Items]
Cash consideration (net of $3.3 million cash acquired)	$ 56,859
Contingent cash consideration	7,982	$ 8,000
Seller liability assumed	896
Working capital adjustment	1,486
Total consideration assigned to net assets acquired	$ 67,223