Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Mar. 30, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Accrual for environmental loss contingencies, gross	$ 17.7	$ 18.4
Accrued environmental loss contingencies, current	5.4	7.0
Accrued environmental loss contingencies, noncurrent	$ 12.3	$ 11.4

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant