Goodwill And Intangible Assets (Schedule Of Gross Carrying Value And Accumulated Amortization For Each Major Class Of Intangible Asset) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 387,711	$ 387,740
Amortized intangible assets - Accumulated Amortization	(122,708)	(114,626)
Amortized intangible assets - Net	265,003	273,114
Intangible assets - Gross Carrying Amount	496,819	496,848
Intangible assets - Accumulated Amortization	(122,708)	(114,626)
Intangible assets - Net	374,111	382,222
Patents [Member]
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	10,499	11,506
Amortized intangible assets - Accumulated Amortization	(3,512)	(4,315)
Amortized intangible assets - Net	6,987	7,191
Amortized intangible assets - Weighted Average Life	12
Trade Names [Member]
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	73,502	72,823
Amortized intangible assets - Accumulated Amortization	(19,504)	(18,205)
Amortized intangible assets - Net	53,998	54,618
Amortized intangible assets - Weighted Average Life	14
Customer Relationships [Member]
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	222,597	221,076
Amortized intangible assets - Accumulated Amortization	(76,092)	(69,280)
Amortized intangible assets - Net	146,505	151,796
Amortized intangible assets - Weighted Average Life	10
Non-Compete Agreements [Member]
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	3,205	4,801
Amortized intangible assets - Accumulated Amortization	(2,583)	(4,053)
Amortized intangible assets - Net	622	748
Amortized intangible assets - Weighted Average Life	4
Unpatented Technology [Member]
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	71,313	70,741
Amortized intangible assets - Accumulated Amortization	(17,893)	(15,617)
Amortized intangible assets - Net	53,420	55,124
Amortized intangible assets - Weighted Average Life	11
Other Amortizable Intangible Assets [Member]
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	6,595	6,793
Amortized intangible assets - Accumulated Amortization	(3,124)	(3,156)
Amortized intangible assets - Net	3,471	3,637
Amortized intangible assets - Weighted Average Life	10
Banjo Trade Name [Member]
Goodwill And Intangible Assets [Line Items]
Indefinite lived intangible assets - Gross Carrying Amount	62,100	62,100
Indefinite lived intangible assets - Net	62,100	62,100
CVI Melles Griot Trade Name [Member]
Goodwill And Intangible Assets [Line Items]
Indefinite lived intangible assets - Gross Carrying Amount	47,008	47,008
Indefinite lived intangible assets - Net	$ 47,008	$ 47,008