Goodwill And Intangible Assets (Schedule Of Intangible Assets Other Than Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Cost	$ 138,288		$ 132,575
Accumulated Amortization	79,444		69,742
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	9,547		9,481
Accumulated Amortization	8,619		7,879
Product Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	38,670	[1]	37,747	[1]
Accumulated Amortization	25,796	[1]	23,123	[1]
Customer-Related Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	82,940	[2]	78,839	[2]
Accumulated Amortization	38,800	[2]	32,920	[2]
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	7,131		6,508
Accumulated Amortization	$ 6,229		$ 5,820

[1] Product rights comprise certain technologies, licenses and trade names acquired from third parties.Customer-related intangible assets comprise customer lists and customer relationships acquired from third parties.

[2] Customer-related intangible assets comprise customer lists and customer relationships acquired from third parties.