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Acquisitions (Identifiable Intangible Assets Acquired) (Details) (L.B. Foster Ball Winch, Inc. [Member], USD $) In Thousands, unless otherwise specified | 0 Months Ended
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Nov. 07, 2013
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | $ 14,682
Trade name [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 723
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 6 months
Technology [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | 11,129
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 7 years 6 months
Non-compete agreements [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived Intangible Assets Acquired | $ 2,830
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 1 year

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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=26713463&loc=d3e16265-109275 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination. + References No definition available. + Details
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