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v3.23.3

Contingencies - Additional Information (Detail) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 USD ($) site | Dec. 31, 2022 USD ($)
Site Contingency [Line Items] |  |
Number of non-owned sites company is named potentially responsible party | 13 |
Number of non-owned sites the Company is identified as a de minimis party | 12 |
Number of non-owned sites company is in agreement on amount of de minimis settlement | 8 |
Number of non-owned sites company is continuing to investigate | 4 |
Total environmental reserves | $ | $ 39.7 | $ 41.1
Payments for environmental matters | $ | 6.1 |
HCC Industries |  |
Site Contingency [Line Items] |  |
Environmental expense | $ | $ 4.7 |

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