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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Finite-Lived Intangible Assets, Gross | $ 158,392 |  | $ 158,740
Amortization of Intangible Assets | $ 3,266 | $ 2,157 |
Maximum [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life | 25 years |  |
Minimum [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life | 2 years |  |
Weighted Average [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life | 14 years |  |
Rail Products and Services [Member] |  |  |
Finite-Lived Intangible Assets, Gross | $ 58,878 |  | 59,226
Construction Products [Member] |  |  |
Finite-Lived Intangible Assets, Gross | 1,348 |  | 1,348
Tubular and Energy Services [Member] |  |  |
Finite-Lived Intangible Assets, Gross | $ 98,166 |  | $ 98,166

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: 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=26713463&loc=d3e16323-109275 + Details
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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
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: 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=26713463&loc=d3e16323-109275 + Details
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