Goodwill and Other Intangible Assets and Other Assets (Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 Y	Mar. 31, 2011	Dec. 31, 2011
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]
Intangible assets, gross carrying amount	$ 275,055		$ 275,011
Intangible assets, accumulated amortization	(81,412)		(79,480)
Weighted average amortization period (in years)	29
Amortization expense	1,932	1,623
Future amortization expense [Abstract]
2012	7,726
2013	7,503
2014	6,880
2015	6,491
2016	6,390
2017	6,390
Trademarks and Tradenames [Member]
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]
Unamortized intangible assets, gross carrying amount	88,344		88,344
Customer Relationships [Member]
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]
Amortized intangible assets, gross carrying amount	133,965		133,965
Intangible assets, accumulated amortization	(46,345)		(45,112)
Weighted average amortization period (in years)	33
Patents and Other Intangible Assets [Member]
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]
Amortized intangible assets, gross carrying amount	52,746		52,702
Intangible assets, accumulated amortization	$ (35,067)		$ (34,368)
Weighted average amortization period (in years)	14