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