Commitments And Contingencies (Asbestos Claims Activity) (Details)	3 Months Ended				12 Months Ended
	Dec. 31, 2019 USD ($) claim	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($) claim	Dec. 31, 2016 USD ($) claim	Dec. 31, 2019 USD ($) claim	Dec. 31, 2018 USD ($) claim	Dec. 31, 2017 USD ($) claim	Oct. 06, 2016 USD ($)	Apr. 22, 2016 USD ($)	Feb. 09, 2016 USD ($)	Jul. 02, 2015 USD ($)	Jun. 16, 2014 USD ($)	Sep. 17, 2013 USD ($)	Mar. 01, 2013 USD ($)	Feb. 25, 2013 USD ($)	Aug. 17, 2011 USD ($)	Feb. 23, 2011 USD ($)	Mar. 23, 2010 USD ($)
Activity Related to Asbestos Claims [Roll Forward]
Payments Or Receipts For Asbestos Related Fees And Costs Net Of Insurance Recoveries					$ 41,500,000	$ 63,900,000	$ 62,500,000
Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Beginning claims | claim			36,052		29,089	32,234	36,052
New claims | claim					2,848	2,434	2,819
Settlements | claim					(983)	(1,011)	(1,038)
Dismissals | claim					(1,898)	(4,568)	(5,599)
Ending claims | claim	29,056			36,052	29,056	29,089	32,234
Gross Settlement And Defense Incurred Costs					$ 66,200,000	$ 88,800,000	$ 88,300,000
Payments Or Receipts For Asbestos Related Fees And Costs Net Of Insurance Recoveries					$ 41,500,000	$ 63,900,000	$ 62,500,000
Increase In Total Asbestos Liability	$ 255,000,000
James Nelson [Member] | Asbestos Commitments And Contingencies [Member]
Loss Contingencies [Line Items]
Jury Verdict																		$ 14,500,000
Activity Related to Asbestos Claims [Roll Forward]
Court Judgment Against All Parties Held Responsible																	$ 4,000,000.0
Additional Judgment Interest																	$ 10,000.00
Share Of Responsibility Of Verdict																		9.09%
Thomas Amato [Member] | Asbestos Commitments And Contingencies [Member]
Loss Contingencies [Line Items]
Jury Verdict															$ 2,500,000
Activity Related to Asbestos Claims [Roll Forward]
PaidJuryVerdict		$ 300,000
Share Of Responsibility Of Verdict															10.00%
Frank Vincinguerra [Member] | Asbestos Commitments And Contingencies [Member]
Loss Contingencies [Line Items]
Jury Verdict															$ 2,300,000
Activity Related to Asbestos Claims [Roll Forward]
PaidJuryVerdict				$ 600,000
Share Of Responsibility Of Verdict															20.00%
Ivo Peraica [Member] | Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Jury Verdict Total														$ 35,000,000
Court_Reduced_Verdict														18,000,000
Court Judgment														$ 10,600,000
Reduced Damages								$ 4,250,000
CourtJudgmentIncludingSetoffs								1,940,000
Paid Judgment Pursuant to Appeal			$ 2,700,000
Richard DeLisle [Member] | Asbestos Commitments And Contingencies [Member]
Loss Contingencies [Line Items]
Jury Verdict													$ 8,000,000
Activity Related to Asbestos Claims [Roll Forward]
Court Judgment													$ 1,300,000
Share Of Responsibility Of Verdict													16.00%
Ivan Sweberg [Member] | Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Jury Verdict Total												$ 15,000,000
Court_Reduced_Verdict												10,000,000
Court Judgment												5,300,000
Reduced Damages								9,500,000
CourtJudgmentIncludingSetoffs								4,730,000
Paid Judgment Pursuant to Appeal			$ 5,700,000
Selwyn Hackshaw [Member] | Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Jury Verdict Total												10,000,000
Court_Reduced_Verdict												6,000,000
Court Judgment												$ 3,100,000
Reduced Damages								3,000,000
CourtJudgmentIncludingSetoffs								$ 0
James Poage [Member] | Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Court Judgment											$ 10,800,000
compensatory_damages											1,500,000
Additional Damages											$ 10,000,000
Valent Rabovsky [Member] | Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Jury Verdict Total										$ 1,085,000.000
Court Judgment									$ 400,000
Share Of Responsibility Of Verdict										30.00%
George Coulbourn [Member] | Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Jury Verdict Total									9,000,000
Court Judgment									$ 6,800,000
Share Of Responsibility Of Verdict									20.00%
Additional Damages									$ 5,000,000
Geoffrey_Anisansel [Member] | Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Jury Verdict Total		$ 20,000,000
Ronald Dummitt [Member] | Asbestos Commitments And Contingencies [Member]
Activity Related to Asbestos Claims [Roll Forward]
Court Judgment																$ 4,900,000