Restructuring - Additional Information (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) Facility Plant	Dec. 31, 2016 USD ($)
Reorganizations [Abstract]
Restructuring charges \| $	$ 3,567	$ 3,920	$ 642
Number of facilities consolidated \| Facility		1
Number of manufacturing plants \| Plant		2

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration