3. Intangible Assets, Goodwill and Other Intangible Assets (Details) (USD $)	3 Months Ended	9 Months Ended		9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Sep. 30, 2011 Customer Relationships [Member]	Dec. 31, 2010 Customer Relationships [Member]	Sep. 30, 2011 Know how [Member]	Dec. 31, 2010 Know how [Member]	Sep. 30, 2011 Developed Technology Rights [Member]	Dec. 31, 2010 Developed Technology Rights [Member]	Sep. 30, 2011 Licensing Agreements [Member]	Dec. 31, 2010 Licensing Agreements [Member]	Sep. 30, 2011 Trade Names [Member]	Dec. 31, 2010 Trade Names [Member]	Sep. 30, 2011 Noncompete Agreements [Member]	Dec. 31, 2010 Noncompete Agreements [Member]	Sep. 30, 2011 Patents [Member]	Dec. 31, 2010 Patents [Member]	Sep. 30, 2011 Other Intangible Assets [Member]	Dec. 31, 2010 Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Average Remaining Life (years)						1-12	1-13	5	1-6	1-11	1-11	1-9	1-10	1-11	2-12	1-8	1-8	0	0	0	1
Purchase Price	$ 319,500,000		$ 319,500,000		$ 314,700,000	$ 102,900,000	$ 102,300,000	$ 95,300,000	$ 92,600,000	$ 48,500,000	$ 47,900,000	$ 35,600,000	$ 35,400,000	$ 30,200,000	$ 29,500,000	$ 5,900,000	$ 5,900,000	$ 1,000,000	$ 1,000,000	$ 100,000	$ 100,000
Accumulated Amortization	(139,300,000)		(139,300,000)		(110,800,000)	(31,200,000)	(24,800,000)	(41,900,000)	(33,000,000)	(23,700,000)	(19,200,000)	(14,800,000)	(12,200,000)	(21,100,000)	(15,900,000)	(5,500,000)	(4,600,000)	(1,000,000)	(1,000,000)	(100,000)	(100,000)
Net Carrying Amount	180,228,000		180,228,000		203,881,000	71,700,000	77,500,000	53,400,000	59,600,000	24,800,000	28,700,000	20,800,000	23,200,000	9,100,000	13,600,000	400,000	1,300,000	0	0	0	0
Finite-Lived Intangible Assets [Abstract]
Amortization expense	$ 9,600,000	$ 8,300,000	$ 27,700,000	$ 25,100,000

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The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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Aggregate amount of intangible asset amortization recognized as expense during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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-Section 50

-Paragraph 2

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Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

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The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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A description of the remaining amortization period of a major finite-lived intangible asset class.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 926

-SubTopic 20

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6473108&loc=d3e54445-107959

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