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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2019
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table summarizes the Company’s net sales by major product and service category:
|  |  |  |  |  | December 31, |  |
|  |  |  |  |  | 2019 |  | 2018
Rail Products |  |  |  |  |  | $ | 194,464 |  |  | $ | 188,590 |
Rail Technologies |  |  |  |  |  | 127,344 |  |  | 130,934 |
Rail Products and Services |  |  |  |  |  | 321,808 |  |  | 319,524 |
Piling and Fabricated Bridge Products |  |  |  |  |  | 114,076 |  |  | 102,246 |
Precast Concrete Products |  |  |  |  |  | 68,410 |  |  | 56,407 |
Construction Products |  |  |  |  |  | 182,486 |  |  | 158,653 |
Test, Inspection, and Threading Services |  |  |  |  |  | 51,003 |  |  | 59,766 |
Protective Coatings and Measurement Systems |  |  |  |  |  | 99,760 |  |  | 89,026 |
Tubular and Energy Services |  |  |  |  |  | 150,763 |  |  | 148,792 |
Total net sales |  |  |  |  |  | $ | 655,057 |  |  | $ | 626,969 |
For the years ended December 31, 2019 and 2018, net sales by the timing of the transfer of goods and services are as follows:
Year ended December 31, 2019 |  | Rail Products and Services |  | Construction Products |  | Tubular and Energy Services |  | Total
Point in time |  | $ | 240,047 |  |  | $ | 115,590 |  |  | $ | 112,645 |  |  | $ | 468,282 |
Over time |  | 81,761 |  |  | 66,896 |  |  | 38,118 |  |  | 186,775 |
Total net sales |  | $ | 321,808 |  |  | $ | 182,486 |  |  | $ | 150,763 |  |  | $ | 655,057 |
Year ended December 31, 2018 |  | Rail Products and Services |  | Construction Products |  | Tubular and Energy Services |  | Total
Point in time |  | $ | 232,814 |  |  | $ | 106,168 |  |  | $ | 124,734 |  |  | $ | 463,716 |
Over time |  | 86,710 |  |  | 52,485 |  |  | 24,058 |  |  | 163,253 |
Total net sales |  | $ | 319,524 |  |  | $ | 158,653 |  |  | $ | 148,792 |  |  | $ | 626,969 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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