Litigation (Details) $ in Thousands			1 Months Ended	3 Months Ended
	Mar. 08, 2019 USD ($)	Jan. 27, 2014 USD ($) defendant	Oct. 31, 2018 case	Mar. 31, 2019 USD ($) plaintiff case defendant	Dec. 31, 2018 USD ($)	Sep. 04, 2018 USD ($)	Apr. 17, 2018 USD ($)	Mar. 31, 2018 USD ($)
Loss Contingencies [Line Items]
California litigation accrual | $				$ 136,333	$ 136,333
Santa Clara County, California Proceeding
Loss Contingencies [Line Items]
Number of additional defendants | defendant		2
Amount payable jointly and severally for litigation | $		$ 1,150,000
Abatement fund amount proposed by plaintiffs | $							$ 730,000
Maximum abatement amount proposed by defendants | $							$ 409,100
Abatement amount ordered by court | $	$ 401,100					$ 409,100
Period within entry of judgment in which the defendants must pay into the abatement fund	60 days
Setoff of abatement fund | $	$ 8,000
Pennsylvania Proceedings
Loss Contingencies [Line Items]
Number of proceedings initiated | case			2
Ravon Owens v. American Cyanamid, et al., Cesar Sifuentes v. American Cyanamid, et al., and Glenn Burton, Jr. v. American Cyanamid, et al.
Loss Contingencies [Line Items]
Number of cases consolidated | case				3
Maniya Allen, et al. v. American Cyanamid, et al.
Loss Contingencies [Line Items]
Number of plaintiffs selected for discovery | plaintiff				6
Number of plaintiffs | plaintiff				146
Number of cases selected for discovery | case				4
Dijonae Trammell, et al. v. American Cyanamid, et al.
Loss Contingencies [Line Items]
Number of plaintiffs | plaintiff				3
Number of plaintiffs consolidated with another case | plaintiff				1
Mary Lewis v. Lead Industries Association, et al.
Loss Contingencies [Line Items]
Number of defendants | defendant				3
Number of plaintiffs whose claims were paid by Medicaid or private insurance | plaintiff				3
Number of plaintiffs whose claims were paid by Medicaid | plaintiff				2