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Other income, net - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Jun. 30, 2022 | Sep. 30, 2021 | Jun. 30, 2021 | Jun. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure Other Income Net Additional Information Detail [Line Items] |  |  |  |  |  |  |  |
Insurance recoveries |  |  |  |  |  | $ 3.0 | $ 2.8 | $ 0.1
Pre-tax gain on sale of land |  |  | $ 10.4 | $ 5.6 | $ 1.5 | 1.5 |  | 16.0
Net proceeds |  |  | $ 15.0 | $ 8.4 | $ 1.8 | 1.8 |  | 23.4
Infrastructure reimbursement |  |  |  |  |  | 25.5 | 16.0 | $ 15.3
Kronos Worldwide, Inc. |  |  |  |  |  |  |  |
Disclosure Other Income Net Additional Information Detail [Line Items] |  |  |  |  |  |  |  |
Insurance recoveries |  |  |  |  |  | 2.5 | $ 2.7 |
Land Well [Member] |  |  |  |  |  |  |  |
Disclosure Other Income Net Additional Information Detail [Line Items] |  |  |  |  |  |  |  |
Infrastructure reimbursement | $ 0.3 | $ 0.8 |  |  |  |  |  |
N L Industries Inc |  |  |  |  |  |  |  |
Disclosure Other Income Net Additional Information Detail [Line Items] |  |  |  |  |  |  |  |
Insurance recoveries |  |  |  |  |  | $ 0.5 |  |

X
- Definition The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482130/360-10-45-5 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-3 + Details
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- Definition The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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- Definition The cash inflow from the sale of land held for investment; excludes sales of land held as inventory or productive use. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition Disclosure Other Income Net Additional Information Detail [Line Items] + References No definition available. + Details
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- Definition Infrastructure development cost reimbursed. + References No definition available. + Details
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- Details
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- Details
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- Details
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