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Commitments and Contingencies - Additional Information (Detail) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2021 USD ($) Cases site | Dec. 31, 2020 USD ($)
Commitments and Contingent Liabilities [Line Items] |  |
Accrual for reasonably estimable environmental remediation and related matters | $ 92,911 | $ 93,416
Environmental Remediation Sites NL Named As PRP Or Defendant |  |
Commitments and Contingent Liabilities [Line Items] |  |
Accrual for reasonably estimable environmental remediation and related matters | $ 93,000 |
Number of sites associated with remediation and related costs | site | 32 |
Number of sites currently not able to reasonably estimate a range of costs | site | 5 |
Maximum | Environmental Remediation Sites NL Named As PRP Or Defendant |  |
Commitments and Contingent Liabilities [Line Items] |  |
Upper end range, estimate costs for remediation and related matters | $ 113,000 |
Lead Pigment Litigation |  |
Commitments and Contingent Liabilities [Line Items] |  |
Number of cases settled and dismissed and found not liable | Cases | 100 |
Period by which loss contingency claims settled and dismissed | 30 years |
Remaining litigation settlement payment due in first year | $ 12,000 |
Remaining litigation settlement payment due in second year | 12,000 |
Remaining litigation settlement payment due in third year | 12,000 |
Remaining litigation settlement payment due in fourth year | 12,000 |
Remaining litigation settlement payment due in fifth year | 12,000 |
Remaining litigation settlement payment due in sixth year | $ 16,700 |

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