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Other Income, Net - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2020 | Jun. 30, 2020 | Jun. 30, 2019
Disclosure Other Income Net Additional Information Detail [Line Items] |  |  |
Infrastructure reimbursement |  | $ 19.1 | $ 9.1
Kronos Worldwide, Inc. |  |  |
Disclosure Other Income Net Additional Information Detail [Line Items] |  |  |
Gain on insurance settlement related to property damage claim | $ 1.5 |  |
City Of Henderson |  |  |
Disclosure Other Income Net Additional Information Detail [Line Items] |  |  |
Infrastructure reimbursement |  | $ 19.1 | $ 8.8

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- Definition Gain (loss) on insurance settlement. + References No definition available. + Details
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- Details
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- Details
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