Segment Information (Schedule Of Consolidated Financial Statements By Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended													12 Months Ended
	Dec. 31, 2011		Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010		Sep. 30, 2010		Jun. 30, 2010		Mar. 31, 2010		Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Segment Reporting Information [Line Items]
Net sales	$ 631,618		$ 659,456	$ 643,773	$ 611,020	$ 574,006		$ 560,714		$ 552,814		$ 530,291		$ 2,545,867	[1]	$ 2,217,825	[1]	$ 2,196,343	[1]
Operating profit	(192,655)	[2]	82,116	79,943	72,860	53,699	[3]	62,879	[4]	65,304	[5]	53,280	[6]	42,264		235,162		208,269
Environmental charge	30,327													30,327
Interest income														1,635		1,184		2,820
Interest expense														(26,255)		(26,841)		(27,139)
Miscellaneous income														2,810		1,424		976
Income before income taxes														20,454		210,929		184,926
Assets	2,843,531	[1]				2,706,697	[1]							2,843,531	[1]	2,706,697	[1]	2,712,898	[1]
Goodwill	820,824					810,285								820,824		810,285		761,978
Capital expenditures														34,737		21,033		28,346
Depreciation and amortization														62,943		59,841		58,204
Corporate Expense-Environmental Charges [Member]
Segment Reporting Information [Line Items]
Operating profit														(30,327)
Corporate Expense-Asbestos Charge [Member]
Segment Reporting Information [Line Items]
Operating profit														(241,647)
Reporting Segments [Member]
Segment Reporting Information [Line Items]
Operating profit														372,439		284,533		264,515
Assets	2,141,874					2,070,086								2,141,874		2,070,086		1,896,708
Goodwill	820,824					810,285								820,824		810,285		761,978
Capital expenditures														34,302		20,443		28,159
Depreciation and amortization														61,151		57,965		56,217
Corporate - Before Asbestos And Environmental Charges [Member]
Segment Reporting Information [Line Items]
Operating profit														(58,201)		(49,371)		(56,246)
Corporate [Member]
Segment Reporting Information [Line Items]
Assets	701,657					636,611								701,657		636,611		816,190
Capital expenditures														435		590		187
Depreciation and amortization														$ 1,792		$ 1,876		$ 1,987

[1] Net sales and assets by geographic region are based on the location of the business unit.

[2] Includes a $241,647 asbestos provision and a $30,327 environmental provision.

[3] Includes $7,841 of restructuring charges and $1,276 of transaction costs associated with the acquisition of Money Controls.

[4] Includes $415 of restructuring charges

[5] Includes $885 of restructuring charges

[6] Includes $135 of restructuring charges