Goodwill And Other Intangible Assets (Schedule Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Dec. 31, 2014
Statement [Line Items]
Gross carrying amount	$ 1,163,570				$ 1,111,296
Accumulated amortization	752,101				720,579
Amortization expense	28,173	[1]	36,760	[1]
Product Related Intangible Assets [Member]
Statement [Line Items]
Gross carrying amount	663,657				618,336
Accumulated amortization	472,046				454,830
Other [Member]
Statement [Line Items]
Gross carrying amount	499,913				492,960
Accumulated amortization	280,055				265,749
Minimum [Member]
Statement [Line Items]
Intangible asset life	3 years
Maximum [Member]
Statement [Line Items]
Intangible asset life	7 years
Maximum [Member] | Patents [Member]
Statement [Line Items]
Intangible asset life	10 years
Cost of net revenues [Member] | Product Related Intangible Assets [Member]
Statement [Line Items]
Amortization expense	18,700		24,300
Operating Expense [Member] | Other [Member]
Statement [Line Items]
Amortization expense	$ 9,400		$ 12,500

[1] Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.