Commitments and Contingencies - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017 USD ($) Cases site Plaintiff	Dec. 31, 2016 USD ($)
Commitments and Contingent Liabilities [Line Items]
Accrual for reasonably estimable environmental remediation and related matters	$ 119,159,000	$ 116,658,000
Environmental Remediation Sites NL Named As PRP Or Defendant
Commitments and Contingent Liabilities [Line Items]
Accrual for reasonably estimable environmental remediation and related matters	$ 119,000,000
Number of sites associated with remediation and related costs | site	41
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	$ 161,000,000
Environmental Remediation Litigation
Commitments and Contingent Liabilities [Line Items]
Recoveries receivable	$ 0	$ 0
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	20 years
California Lead Paint Litigation
Commitments and Contingent Liabilities [Line Items]
Amount awarded to the plaintiff	$ 1,150,000,000
Product Liability And Occupational Exposure Litigation Claims
Commitments and Contingent Liabilities [Line Items]
Number of cases pending | Cases	101
Product Liability And Occupational Exposure Litigation Claims | Administratively Dismissed Claims
Commitments and Contingent Liabilities [Line Items]
Number of plaintiffs involved | Plaintiff	8,687
Product Liability And Occupational Exposure Litigation Claims | Pending Claims
Commitments and Contingent Liabilities [Line Items]
Number of plaintiffs involved | Plaintiff	586