The amount of amortization expense expected to be recognized during the first full fiscal year following the date of the most recent balance sheet.

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- Definition

The amount of amortization expense expected to be recognized during the fourth full fiscal year following the date of the most recent balance sheet.

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The amount of amortization expense expected to be recognized during the second full fiscal year following the date of the most recent balance sheet.

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- Definition

The amount of amortization expense expected to be recognized during the third full fiscal year following the date of the most recent balance sheet.

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- Definition

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275

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- Definition

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275

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- Definition

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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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The calculated weighted-average useful life of all finite-lived intangible assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275

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- Definition

The amount of amortization expense expected to be recognized during the remainder of the current fiscal year.

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Goodwill and Other Intangible Assets (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 Segment Jurisdiction Year statement Plan Site	Sep. 30, 2010	Dec. 31, 2010
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	$ 163,300		$ 163,300		$ 159,100
Accumulated Amortization	62,600		62,600		51,500
Weighted average useful lives of amortizable intangible assets (in years)			11
Amortization expense	3,800	3,900	11,100	10,100
Amortization expense estimated for each of the next five fiscal years
2011		14,700
2012		14,900
2013		11,600
2014		9,700
2015		9,200
Customer relationships
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	106,100		106,100		104,100
Accumulated Amortization	35,700		35,700		27,800
Weighted average useful lives of amortizable intangible assets (in years)			10
Proprietary technology
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	41,800		41,800		39,800
Accumulated Amortization	14,500		14,500		12,100
Weighted average useful lives of amortizable intangible assets (in years)			14
License agreements
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	6,000		6,000		6,000
Accumulated Amortization	4,400		4,400		3,800
Weighted average useful lives of amortizable intangible assets (in years)			8
Trade names and other
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	9,400		9,400		9,200
Accumulated Amortization	$ 8,000		$ 8,000		$ 7,800
Weighted average useful lives of amortizable intangible assets (in years)			15