Goodwill And Other Intangible Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Intangible Assets [Abstract]
Gross carrying amount	$ 1,760,000		$ 1,760,000		$ 930,740
Accumulated amortization	907,343		907,343		849,249
Product Related Intangible Assets [Member]
Intangible Assets [Abstract]
Gross carrying amount	1,095,209		1,095,209		742,949
Accumulated amortization	696,925		696,925		665,798
Product Related Intangible Assets [Member] | Cost of net revenues [Member]
Intangible Assets [Abstract]
Amortization expense	20,100	$ 8,300	31,100	$ 16,600
Other [Member]
Intangible Assets [Abstract]
Gross carrying amount	664,791		664,791		187,791
Accumulated amortization	210,418		210,418		$ 183,451
Other [Member] | Operating Expense [Member]
Intangible Assets [Abstract]
Amortization expense	$ 19,400	$ 700	$ 27,000	$ 1,400
Minimum [Member]
Statement [Line Items]
Intangible asset life			2 years
Minimum [Member] | Patents [Member]
Statement [Line Items]
Intangible asset life			7 years
Maximum [Member]
Statement [Line Items]
Intangible asset life			7 years
Maximum [Member] | Patents [Member]
Statement [Line Items]
Intangible asset life			10 years