Acquisitions And Divestitures (Details) - USD ($)	1 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Intangible asset useful life			15 years 9 months 18 days
Business Combination, Integration Related Costs			$ 7,200,000	$ 9,800,000	$ 0
Inventory and Backlog Amortization				4,800,000
Restructuring charges			7,800,000	29,200,000	0
Goodwill	$ 1,249,300,000	$ 1,249,300,000	$ 1,167,900,000	1,191,300,000	1,249,300,000
Acquisition related costs					22,800,000
Net Sales					2,936,000,000
Net income attributable to common shareholders					$ 242,000,000
Basic earnings per share from continuing operations					$ 4.18
Diluted earnings per share from continuing operations					$ 4.11
MEI Conlux Holdings [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred				804,000,000
Sales reported by acquired entity					$ 399,000,000
Pro-forma information, sales of acquiree since acquisition date	25,000,000
Pro-forma information, gross profit of acquiree since acquisition date	$ 2,000,000
Proceeds Received Related To Adjustment Of Working Capital				$ 6,100,000
2.75% Notes Due 2018 [Member]
Business Acquisition [Line Items]
Notes issued		250,000,000
Debt instrument interest rate				2.75%
4.45% Notes Due 2023 [Member]
Business Acquisition [Line Items]
Notes issued		$ 300,000,000
Debt instrument interest rate				4.45%
Customer relationships [Member]
Business Acquisition [Line Items]
Intangible asset useful life			15 years 6 months
Merchandising Systems [Member]
Business Acquisition [Line Items]
Sale price of product line				$ 6,800,000
Gain on divestitures					2,000,000
Sales of product line sold during period					$ 15,100,000
Acquisition Related Restructuring [Member]
Business Acquisition [Line Items]
Restructuring charges				10,300,000
Acquisition Related Restructuring [Member]
Business Acquisition [Line Items]
Restructuring charges			$ (600,000)	$ 10,300,000