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Contingencies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) unit_Lawsuit Site	Dec. 31, 2019 USD ($)
Site Contingency [Line Items]
Number of non-owned sites Company is named Potentially Responsible Party | Site	13
Number of non-owned sites the Company is identified as a de minimis party | Site	12
Number of non Owned sites company is identified as de minimis party, settlement amount known | Site	8
Number of non Owned sites company is identified as de minimis party, settlement amount unknown | Site	4
Total environmental reserves	$ 32.4	$ 28.9
Increase (decrease) in environmental reserves	9.2
Total expenses related to environmental matters	5.6
Foreign currency translation	(0.1)
Amount awarded to other party	$ 6.8
Number of class action lawsuits | unit_Lawsuit	2
HCC Industries
Site Contingency [Line Items]
Reserves related to an owned site acquired	$ 7.4	$ 9.0

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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