Goodwill And Other Intangible Assets (Schedule Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	$ 1,114,821	$ 1,090,847
Intangible assets, Accumulated Amortization	322,790	306,207
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	25,868	25,868
Intangible assets, Accumulated Amortization	18,201	17,738
Trademarks And Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	124,089	123,192
Intangible assets, Accumulated Amortization	27,224	25,628
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	964,864	941,787
Intangible assets, Accumulated Amortization	$ 277,365	$ 262,841