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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2014
Goodwill and Other Intangible Assets [Abstract] |
Schedule of Goodwill [Table Text Block] |
|  | Rail Products |  | Construction Products |  | Tubular Products |  | Total
Balance at December 31, 2012 | $ | 38,026 | $ | 3,211 | $ | - | $ | 41,237
Acquisitions |  | - |  | - |  | 16,544 |  | 16,544
Balance at December 31, 2013 |  | 38,026 |  | 3,211 |  | 16,544 |  | 57,781
Acquisitions |  | 971 |  | 1,936 |  | 22,302 |  | 25,209
Foreign currency translation impact |  | (41) |  | - |  | - |  | (41)
Balance at December 31, 2014 | $ | 38,956 | $ | 5,147 | $ | 38,846 | $ | 82,949
Schedule of Intangible Assets [Table Text Block] |
|  | 2014 |  | 2013
Rail Products | $ | 44,781 | $ | 44,455
Construction Products |  | 3,178 |  | 1,830
Tubular Products |  | 47,812 |  | 14,682
| $ | 95,771 | $ | 60,967
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
| 2014
| Weighted Average |  | Gross |  |  |  | Net
| Amortization Period |  | Carrying |  | Accumulated |  | Carrying
| In Years |  | Value |  | Amortization |  | Amount
Non-compete agreements | 5 | $ | 4,143 | $ | (705) | $ | 3,438
Patents | 10 |  | 564 |  | (189) |  | 375
Customer relationships | 19 |  | 44,450 |  | (4,679) |  | 39,771
Supplier relationships | 5 |  | 350 |  | (268) |  | 82
Trademarks and trade names | 14 |  | 10,765 |  | (1,855) |  | 8,910
Technology | 14 |  | 35,499 |  | (5,941) |  | 29,558
|  | $ | 95,771 | $ | (13,637) | $ | 82,134
| 2013
| Weighted Average |  | Gross |  |  |  | Net
| Amortization Period |  | Carrying |  | Accumulated |  | Carrying
| In Years |  | Value |  | Amortization |  | Amount
Non-compete agreements | 5 | $ | 2,860 | $ | (117) | $ | 2,743
Patents | 10 |  | 639 |  | (201) |  | 438
Customer relationships | 23 |  | 19,960 |  | (3,575) |  | 16,385
Supplier relationships | 5 |  | 350 |  | (213) |  | 137
Trademarks and trade names | 16 |  | 7,003 |  | (1,334) |  | 5,669
Technology | 15 |  | 30,155 |  | (3,681) |  | 26,474
|  | $ | 60,967 | $ | (9,121) | $ | 51,846
Schedule of Expected Amortization Expense [Table Text Block] |
|  | Amortization Expense
2015 | $ | 7,176
2016 |  | 7,012
2017 |  | 6,981
2018 |  | 6,876
2019 |  | 6,152
2020 and thereafter |  | 47,937
| $ | 82,134

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for 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 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + 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) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 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) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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