Related Party Transaction - Additional Information (Detail) - USD ($)	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018
Related party transaction, purchases from related party	$ 152,000	$ 85,000

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

No definition available.

Name:	us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration