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Intangible Asset Depreciation and Amortization Estimated Useful Lives (Detail) | 12 Months Ended
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Dec. 31, 2010 Minimum | Dec. 31, 2010 Maximum | Dec. 31, 2012 Patents | Dec. 31, 2012 Patents Minimum | Dec. 31, 2012 Patents Maximum | Dec. 31, 2012 Trade Names | Dec. 31, 2012 Trade Names Minimum | Dec. 31, 2012 Trade Names Maximum | Dec. 31, 2012 Customer Relationships | Dec. 31, 2012 Customer Relationships Minimum | Dec. 31, 2012 Customer Relationships Maximum | Dec. 31, 2012 Non-Compete Agreements | Dec. 31, 2012 Non-Compete Agreements Minimum | Dec. 31, 2012 Non-Compete Agreements Maximum | Dec. 31, 2012 Unpatented technology and other | Dec. 31, 2012 Unpatented technology and other Minimum | Dec. 31, 2012 Unpatented technology and other Maximum
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible Asset, Useful Life | 2 years | 15 years | 11 years | 5 years | 17 years | 16 years | 10 years | 20 years | 10 years | 3 years | 20 years | 3 years | 2 years | 5 years | 11 years | 4 years | 20 years

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration