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Commitments and Contingencies - Additional Information (Detail) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2016 USD ($) Cases site Plaintiff | Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items] |  |
Accrual for reasonably estimable environmental remediation and related matters | $ 116,811,000 | $ 113,133,000
Environmental Remediation Sites NL Named As PRP Or Defendant |  |
Loss Contingencies [Line Items] |  |
Accrual for reasonably estimable environmental remediation and related matters | $ 117,000,000 |
Number of sites associated with remediation and related costs | site | 42 |
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 |  |
Loss Contingencies [Line Items] |  |
Upper end range, estimate costs for remediation and related matters | $ 160,000,000 |
Environmental Remediation Litigation |  |
Loss Contingencies [Line Items] |  |
Recoveries receivable | $ 0 | $ 0
Lead Pigment Litigation |  |
Loss Contingencies [Line Items] |  |
Number of cases settled and dismissed and found not liable | Cases | 100 |
Period by which loss contingency claims settled and dismissed | 20 years |
California Lead Paint Litigation |  |
Loss Contingencies [Line Items] |  |
Amount awarded to the plaintiff | $ 1,150,000,000 |
Product Liability And Occupational Exposure Litigation Claims |  |
Loss Contingencies [Line Items] |  |
Number of cases pending | Cases | 103 |
Product Liability And Occupational Exposure Litigation Claims | Administratively Dismissed Claims |  |
Loss Contingencies [Line Items] |  |
Number of plaintiffs involved | Plaintiff | 8,692 |
Product Liability And Occupational Exposure Litigation Claims | Pending Claims |  |
Loss Contingencies [Line Items] |  |
Number of plaintiffs involved | Plaintiff | 588 |

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