Commitments And Contingencies (Asbestos Liability Narrative) (Details) (USD $)	6 Months Ended			3 Months Ended			6 Months Ended		9 Months Ended	12 Months Ended							0 Months Ended	6 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010	Jun. 30, 2011 Asbestos Commitments And Contingencies [Member]	Jun. 30, 2010 Asbestos Commitments And Contingencies [Member]	Sep. 30, 2007 Asbestos Commitments And Contingencies [Member]	Jun. 30, 2011 Asbestos Commitments And Contingencies [Member]	Jun. 30, 2010 Asbestos Commitments And Contingencies [Member]	Sep. 30, 2007 Asbestos Commitments And Contingencies [Member]	Dec. 31, 2010 Asbestos Commitments And Contingencies [Member]	Dec. 31, 2009 Asbestos Commitments And Contingencies [Member]	Dec. 31, 2008 Asbestos Commitments And Contingencies [Member]	Mar. 31, 2011 Asbestos Commitments And Contingencies [Member]	Mar. 31, 2010 Asbestos Commitments And Contingencies [Member]	Jul. 14, 2008 Asbestos Commitments And Contingencies [Member] Joseph Norris [Member]	Jun. 30, 2009 Asbestos Commitments And Contingencies [Member] Earl Haupt [Member]	Feb. 23, 2011 Asbestos Commitments And Contingencies [Member] James Nelson [Member]	Jun. 30, 2011 Asbestos Commitments And Contingencies [Member] James Nelson [Member]	Mar. 23, 2010 Asbestos Commitments And Contingencies [Member] James Nelson [Member]	Jun. 30, 2011 Asbestos Commitments And Contingencies [Member] Larry Bell [Member]	Feb. 23, 2011 Asbestos Commitments And Contingencies [Member] Larry Bell [Member]	Mar. 23, 2010 Asbestos Commitments And Contingencies [Member] Larry Bell [Member]	Mar. 14, 2008 Asbestos Commitments And Contingencies [Member] James Baccus [Member]	May 16, 2008 Asbestos Commitments And Contingencies [Member] Chief Brewer [Member]	Feb. 02, 2009 Asbestos Commitments And Contingencies [Member] Dennis Woodard [Member]	Jun. 30, 2011 Asbestos Commitments And Contingencies [Member] New York [Member]	Jun. 30, 2011 Asbestos Commitments And Contingencies [Member] Mississippi [Member]	Jun. 30, 2011 Asbestos Commitments And Contingencies [Member] Texas [Member]	Jun. 30, 2011 Asbestos Commitments And Contingencies [Member] Ohio [Member]
Pending claims				56,403	65,352		56,403	65,352		64,839	66,341		64,646	67,479												21,000	5,500	9,900	3,000
Jury verdit payment including accrued judgment interest															$ 2,540,000
Jury verdict payment																20,000
Compensatory damages																							2,450,000
Additional damages																							11,900,000
Jury verdict percentage of responsibility																									0.50%
Share of responsibility of verdict																		for a 1/11th share		for a 1/20th share
Jury verdict																			14,500,000			3,500,000			16,930,000
Court judgment																					200,000			680,000	1,650,000
Court judgment against all parties held responsible																	4,000,000
Additional interest on the compensation awarded																	10,000
Gross settlement and defense costs							56,200,000	52,000,000
Number of coverage in place agreements with excess insurer groups							11
Number of buyout agreements with excess insurer groups							6
Pre-tax cash payments	(35,621,000)	(27,485,000)		(22,900,000)	(16,400,000)		(35,600,000)	(27,500,000)		(66,700,000)
Cumulative claims resolved				83,000			83,000
Settlement cost				300,000,000			300,000,000
Average settlement cost per resolved claim										7,036	4,781	4,186
Cumulative average settlement cost per resolved claim				4,000			4,000
Number of significant factors affecting the asbesos liability estimate							4
Base reference period used in methodology to project future asbestos costs							The methodology used by HR&A to project future asbestos costs is based largely on the Company's experience during a base reference period of eleven quarterly periods (consisting of the two full preceding calendar years and three additional quarterly periods to the estimate date) for claims filed, settled and dismissed.
Methodology updated base reference period							11
Percentage of asbestos liability attributable to settlement and defense costs for future claims							two-thirds
Estimated payments to current and future claimants				30,000,000,000			30,000,000,000
Additional liability						586,000,000
Percentage of mesothelioma claims of total pending asbestos claims						5.00%			5.00%
Percentage of mesothelioma claims of aggregate settlement and defense costs						90.00%			90.00%
Liability for claims				671,000,000		1,055,000,000	671,000,000		1,055,000,000
Current portion of total estimated liability	100,000,000		100,000,000	100,000,000			100,000,000
Insurance reimbursement asset				200,000,000		351,000,000	200,000,000		351,000,000
Forecasted liability reimbursement rate									33.00%
Aggregate value of policy buyout agreements										$ 79,500,000