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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014
Finite-Lived Intangible Assets, Gross | $ 160,617 |  | $ 160,617 |  | $ 95,771
Amortization of Intangible Assets | 3,456 | $ 1,172 | $ 5,613 | $ 2,313 |
Maximum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 25 years |  |
Minimum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 5 years |  |
Weighted Average [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 15 years |  |
Rail Products and Services [Member] |  |  |  |  |
Finite-Lived Intangible Assets, Gross | 59,273 |  | $ 59,273 |  | 44,781
Construction Products Segment [Member] |  |  |  |  |
Finite-Lived Intangible Assets, Gross | 3,178 |  | 3,178 |  | 3,178
Tubular and Energy Services [Member] |  |  |  |  |
Finite-Lived Intangible Assets, Gross | $ 98,166 |  | $ 98,166 |  | $ 47,812

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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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