Segment Information (Schedule Of Consolidated Financial Statements By Industry Segments) (Details) (USD $)	3 Months Ended																12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Business Combination, Integration Related Costs	$ 2,014		$ 984		$ 2,030		$ 4,391										$ 9,753,000		$ 0		$ 0
Net sales	730,658,000		727,413,000		750,096,000		716,830,000		681,449,000		637,515,000		648,746,000		627,571,000		2,924,997,000		2,595,281,000		2,579,068,000
Operating profit from continuing operations	89,591,000	[1]	47,733,000	[2]	97,580,000	[3]	81,386,000	[4]	83,121,000	[5]	89,009,000	[6]	88,846,000	[7]	86,900,000	[8]	316,290,000		347,876,000		310,441,000
Interest income																	1,713,000		1,867,000		1,879,000
Interest expense																	(39,222,000)		(26,460,000)		(26,831,000)
Miscellaneous income																	2,375,000		2,733,000		(884,000)
Income before income taxes																	281,156,000		326,016,000		284,605,000
Assets	3,450,785,000								3,559,607,000								3,450,785,000		3,559,607,000		2,889,878,000
Goodwill	1,191,305,000								1,249,316,000								1,191,305,000		1,249,316,000		813,792,000
Capital expenditures																	43,732,000		29,461,000		29,308,000
Depreciation and amortization																	75,766,000		54,837,000		57,263,000
Restructuring charges																	29,237,000		0		18,463,000
Acquisition related costs																	22,800,000
Environmental provision																	55,800,000		0		0
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax			2,000
Gains (Losses) on Sales of Other Real Estate	3,498		660		1,055												1,015
Merchandising Systems [Member]
Segment Reporting Information [Line Items]
Operating profit from continuing operations																	69,054,000	[9]	34,822,000	[9]	33,771,000	[9]
Assets	1,210,137,000								1,383,007,000								1,210,137,000		1,383,007,000		408,702,000
Goodwill	202,670,000								635,759,000								202,670,000		635,759,000		201,866,000
Capital expenditures																	11,417,000		4,670,000		4,263,000
Depreciation and amortization																	41,618,000		17,537,000		14,226,000
Corporate Before Environmental Charges [Member]
Segment Reporting Information [Line Items]
Business Combination, Integration Related Costs																	1,351
Operating profit from continuing operations																	(53,577,000)	[10]	(76,148,000)	[10]	(64,847,000)	[10]
Restructuring charges																					25,000
Acquisition related costs									10,170		2,854		6,853		2,888				21,700		3,874
Corporate expense - environmental charges [Member]
Segment Reporting Information [Line Items]
Operating profit from continuing operations																	(55,800,000)	[11]	0	[11]	0	[11]
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating profit from continuing operations																	425,667,000		424,024,000		375,288,000
Assets	2,914,497,000								3,123,998,000								2,914,497,000		3,123,998,000		2,149,127,000
Capital expenditures																	43,155,000		29,311,000		28,662,000
Depreciation and amortization																	73,726,000		52,517,000		55,541,000
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Assets	536,288,000								435,609,000	[12]							536,288,000		435,609,000	[12]	740,751,000	[12]
Capital expenditures																	577,000		150,000		646,000
Depreciation and amortization																	2,040,000		2,320,000		1,722,000
Environmental Claims For Site In Goodyear Arizona [Member] | Corporation [Member]
Segment Reporting Information [Line Items]
Loss Contingency, Damages Paid, Value					6,500
Environmental provision			49,000
Environmental Claims For Site In Roseland New Jersey [Member] | Corporation [Member]
Segment Reporting Information [Line Items]
Environmental provision			$ 6,800

[1] (g)Includes $2,014 of acquisition related integration costs, $4,594 of acquisition related restructuring costs and $11,095 of repositioning charges

[2] (e)Includes $984 of acquisition related integration costs, $111 of acquisition related restructuring costs, $3,396 of repositioning charges, $49,000 million charge related to an increase in the Company's liability at the Goodyear Site, and $6,800 million charge for expected remediation costs associated with an environmental site in Roseland, New Jersey.

[3] Includes the impact of item (m) cited above, net of tax and $1,240 withholding taxes related to acquisition funding.

[4] Includes restructuring charges of 12,589 and $12,745 in 2014 and 2012, respectively.

[5] Includes $10,170 of acquisition transaction costs and $4,654 of acquisition related inventory and backlog amortization

[6] Includes $2,854 of acquisition transaction costs.

[7] Includes $6,853 of acquisition transaction costs.

[8] Includes $2,888 of acquisition transaction costs.

[9] Includes restructuring charges $10,322, acquisition integration related costs of $8,402 and acquisition related inventory step up and backlog amortization of $4,790 in 2014. Includes acquisition related inventory and backlog amortization of $4,654 and acquisition costs of $1.1 million in 2013 and restructuring charges of $3,355 in 2012.

[10] Includes $1,351 of acquisition integration related costs in 2014 and $21,700 and $3,874 of acquisition costs in 2013 and 2012, respectively, all of which are associated with the acquisition of MEI, restructuring charges of $25 in 2012 and $6,500 for a settlement lawsuit recorded in 2014

[11] Includes a $49,000 charge related to an increase in the Company's liability expected at the Goodyear Site and a $6,800 charge for expected remediation costs associated with a previously disclosed environmental site in Roseland, New Jersey in 2014.

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