Commitments And Contingencies (Asbestos Liability) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011 Claim	Jun. 16, 2014	Jul. 14, 2008 Year	Jun. 30, 2009	Feb. 23, 2011	Mar. 23, 2010	Aug. 17, 2011	Mar. 09, 2012	Jun. 30, 2014 Year	Aug. 29, 2012	Oct. 23, 2012	Nov. 28, 2012	Feb. 25, 2013	Mar. 01, 2013	Jul. 31, 2013	Sep. 11, 2013	Sep. 17, 2013
Loss Contingencies [Line Items]
Pre-tax cash payments	$ 61,297,000	$ 62,827,000	$ 77,957,000
Current portion of total estimated liability	79,000,000	88,038,000
Asbestos Commitments And Contingencies [Member]
Loss Contingencies [Line Items]
Pending claims	47,507	51,490	56,442	58,658
Number of judgments paid	3
Gross Settlement And Defense Incurred Costs	81,100,000	90,800,000	96,100,000
Number of coverage-in-place agreements with excess insurer groups	11
Number of buyout agreements with excess insurer groups	10
Pre-tax cash payments	61,300,000	62,800,000	78,000,000
Cumulative claims resolved	107,000
Settlement cost	425,000,000
Average settlement cost per resolved claim	3,800	3,300	6,300
Cumulative average settlement cost per resolved claim	4,000
Number of years included in methodology base reference period	2
Additional quarters included in methodology base reference period	3
Estimated payments to current and future claimants	36,000,000,000
Additional liability				285,000,000
Percentage of mesothelioma claims of total pending asbestos claims				8.00%
Percentage of mesothelioma claims of aggregate settlement and defense costs				90.00%
Liability for claims	614,000,000			894,000,000
Percentage Of Asbestos Liability Attributable To Settlement And Denfese Costs For Future Claims				80.00%
Current portion of total estimated liability	79,000,000
Insurance reimbursement asset	147,000,000			225,000,000
Forecasted liability reimbursement rate				25.00%
Aggregate value of policy buyout agreements	82,500,000
Asbestos Commitments And Contingencies [Member] | New York [Member]
Loss Contingencies [Line Items]
Pending claims	18,700
Asbestos Commitments And Contingencies [Member] | Mississippi [Member]
Loss Contingencies [Line Items]
Pending claims	5,100
Asbestos Commitments And Contingencies [Member] | Texas [Member]
Loss Contingencies [Line Items]
Pending claims	9,300
Asbestos Commitments And Contingencies [Member] | Ohio [Member]
Loss Contingencies [Line Items]
Pending claims	300
Asbestos Commitments And Contingencies [Member] | Ivan Sweberg [Member]
Loss Contingencies [Line Items]
Jury Verdict Total					15,000,000
Court judgment					10,000,000
Plaintiff's Request					5,300,000
Asbestos Commitments And Contingencies [Member] | Selwyn Hackshaw [Member]
Loss Contingencies [Line Items]
Jury Verdict Total					10,000,000
Court judgment					6,000,000
Plaintiff's Request					2,900,000
Asbestos Commitments And Contingencies [Member] | Joseph Norris [Member]
Loss Contingencies [Line Items]
Number of years after judgment paid						2
Jury verdict payment including accrued judgment interest						2,540,000
Asbestos Commitments And Contingencies [Member] | Earl Haupt [Member]
Loss Contingencies [Line Items]
Jury verdict payment							20,000
Asbestos Commitments And Contingencies [Member] | James Nelson [Member]
Loss Contingencies [Line Items]
Share of responsibility of verdict									9.09%
Jury verdict									14,500,000
Court judgment against all parties held responsible								4,000,000
Additional interest on the compensation awarded								10,000
Asbestos Commitments And Contingencies [Member] | Larry Bell [Member]
Loss Contingencies [Line Items]
Share of responsibility of verdict									5.00%
Jury verdict									3,500,000
Court judgment								200,000
Asbestos Commitments And Contingencies [Member] | Ronald Dummitt [Member]
Loss Contingencies [Line Items]
Jury verdict percentage of responsibility										99.00%
Jury verdict										32,000,000
Court judgment										4,900,000
Court written decision										8,000,000
Asbestos Commitments And Contingencies [Member] | Frank Paasch [Member]
Loss Contingencies [Line Items]
Share of responsibility of verdict											12.50%
Jury verdict											123,000
Asbestos Commitments And Contingencies [Member] | William Paulus [Member]
Loss Contingencies [Line Items]
Number of years after judgment paid												2
Jury verdict payment												900,000
Share of responsibility of verdict													10.00%
Jury Verdict Non-Economic Damages													6,500,000
Jury Verdict Economic Damages													400,000
Court judgment													800,000
Asbestos Commitments And Contingencies [Member] | Gerald Suttner [Member]
Loss Contingencies [Line Items]
Share of responsibility of verdict														4.00%
Plaintiff's Damages														3,000,000
Court judgment														100,000
Asbestos Commitments And Contingencies [Member] | James Hellam [Member]
Loss Contingencies [Line Items]
Share of responsibility of verdict															7.00%
Jury Verdict Non-Economic Damages															4,500,000
Jury Verdict Economic Damages															900,000
Court judgment															1,282,000
Court Judgment Including Set-offs															1,100,000
Asbestos Commitments And Contingencies [Member] | Thomas Amato [Member]
Loss Contingencies [Line Items]
Share of responsibility of verdict																10.00%
Jury verdict																2,500,000
Asbestos Commitments And Contingencies [Member] | Frank Vincinguerra [Member]
Loss Contingencies [Line Items]
Share of responsibility of verdict																20.00%
Jury verdict																2,300,000
Asbestos Commitments And Contingencies [Member] | Ivo Peraica [Member]
Loss Contingencies [Line Items]
Jury Verdict Total																	35,000,000
Court_Reduced_Verdict																	18,000,000
Court judgment																	10,600,000
Asbestos Commitments And Contingencies [Member] | Holdsworth [Member]
Loss Contingencies [Line Items]
Jury Verdict Total																		3,100,000
Plaintiff's Request																		1,100,000
Asbestos Commitments And Contingencies [Member] | Lloyd Garvin [Member]
Loss Contingencies [Line Items]
Additional damages																			11,000,000
Court Reduced Compensatory Damages Verdict																			2,500,000
Court Reduced damages																			3,500,000
Court Judgment Including Set-offs																			3,500,000
compensatory_damages																			11,000,000
Asbestos Commitments And Contingencies [Member] | Richard DeLisle [Member]
Loss Contingencies [Line Items]
Share of responsibility of verdict																				16.00%
Jury verdict																				8,000,000
Court judgment																				$ 1,300,000