Business Acquisitions and Investments - Additional Information (Detail) - USD ($)			1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2018	Oct. 26, 2017	Sep. 29, 2018	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Business acquisition, goodwill			$ 80,065,000	$ 80,065,000		$ 80,065,000		$ 65,999,000	$ 28,146,000
Net sales				$ 247,954,000	$ 224,615,000	713,363,000	$ 675,502,000
Minimum [Member]
Business Acquisition [Line Items]
Cash flows discounted at rates		15.00%
Maximum [Member]
Business Acquisition [Line Items]
Cash flows discounted at rates		17.00%
Flight Systems Automotive Group LLC [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of outstanding stock acquired	100.00%
Business acquisition, cash paid	$ 27,500,000
Business acquisition, goodwill	13,300,000
Business acquisition, other net assets	14,200,000
Business acquisition, accounts receivables	2,000,000
Business acquisition, inventory	11,600,000
Business acquisition, other assets and liabilities net	$ 600,000
Net sales			$ 1,700,000
MAS Automotive Distribution Inc [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of outstanding stock acquired		100.00%
Business acquisition, goodwill		$ 35,431,000
Business acquisition, total purchase price consideration		67,223,000
Business acquisition, cash acquired		3,300,000
Net sales, included in consolidated statement of operations						30,000,000
Estimated contingent payments		7,982,000				8,200,000
Business combination maximum contingent consideration payment		$ 11,700,000
Business combination sales thresholds achievement maturity date		2020-12
Payment to former shareholder						1,500,000
MAS Automotive Distribution Inc [Member] | Selling, General and Administrative Expeses [Member]
Business Acquisition [Line Items]
Estimated contingent payments						$ 200,000