Segment Information (Schedule Of Net Sales And Assets By Geographic Region) (Details) (USD $) In Thousands, unless otherwise specified	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]
Net sales	$ 730,658	$ 727,413	$ 750,096	$ 716,830	$ 681,449		$ 637,515	$ 648,746	$ 627,571	$ 2,924,997	$ 2,595,281		$ 2,579,068
Assets	3,450,785				3,559,607					3,450,785	3,559,607		2,889,878
Long-Lived Assets	1,906,026				1,901,360					1,906,026	1,901,360		1,950,172
U.S. [Member]
Segment Reporting Information [Line Items]
Net sales										1,719,449	1,522,988	[1]	1,522,135	[1]
Assets	1,612,927				1,692,799	[1]				1,612,927	1,692,799	[1]	1,165,233	[1]
Long-Lived Assets	596,847				657,264	[1]				596,847	657,264	[1]	526,136	[1]
Canada [Member]
Segment Reporting Information [Line Items]
Net sales										256,420	292,688	[1]	299,955	[1]
Assets	197,629				206,113	[1]				197,629	206,113	[1]	219,770	[1]
Long-Lived Assets	138,767				140,948	[1]				138,767	140,948	[1]	145,425	[1]
Europe [Member]
Segment Reporting Information [Line Items]
Net sales										737,121	634,425	[1]	612,163	[1]
Assets	662,165				755,970	[1]				662,165	755,970	[1]	634,711	[1]
Long-Lived Assets	363,885				418,516	[1]				363,885	418,516	[1]	423,318	[1]
Other International [Member]
Segment Reporting Information [Line Items]
Net sales										212,007	145,180	[1]	144,815	[1]
Assets	441,776				469,116	[1]				441,776	469,116	[1]	129,413	[1]
Long-Lived Assets	270,239				249,023	[1]				270,239	249,023	[1]	114,542	[1]
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Assets	536,288				435,609	[1]				536,288	435,609	[1]	740,751	[1]
Long-Lived Assets	$ 536,288				$ 435,609	[1]				$ 536,288	$ 435,609	[1]	$ 740,751	[1]

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