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Revenue Revenue (Tables) | 9 Months Ended
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Sep. 30, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following table presents the Company’s disaggregated net sales by primary end market served (dollars in thousands):
|  | Three months ended September 30, |  | Nine months ended September 30,
Customer End Markets |  | 2018 |  | 2017 |  | 2018 |  | 2017
Consumer |  | $ | 72,440 |  |  | $ | 68,380 |  |  | $ | 209,160 |  |  | $ | 194,040 |
Aerospace |  | 49,070 |  |  | 48,550 |  |  | 140,500 |  |  | 141,550 |
Industrial |  | 51,880 |  |  | 46,120 |  |  | 162,200 |  |  | 145,410 |
Oil and gas |  | 50,390 |  |  | 46,280 |  |  | 153,930 |  |  | 141,530 |
Total net sales |  | $ | 223,780 |  |  | $ | 209,330 |  |  | $ | 665,790 |  |  | $ | 622,530 |

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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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