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Revenue Recognition Revenue Recognition (Tables) | 3 Months Ended
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Mar. 31, 2019
Deferred Revenue Disclosure [Abstract] |
Revenue from External Customers by Geographic Areas | Disaggregated revenue by geographic area follows:
| Three Months Ended March 31,
(Dollars in thousands) | 2019 |  | 2018
United States | $ | 74,048 |  |  | $ | 68,318 |
Canada | 17,295 |  |  | 16,141 |
Consolidated total | $ | 91,343 |  |  | $ | 84,459 |
Schedule of Product Information | Disaggregated revenue by product type follows:
| Three Months Ended March 31,
| 2019 |  | 2018
Fastening Systems | 23.5 | % |  | 23.8 | %
Fluid Power | 15.2 | % |  | 14.5 | %
Cutting Tools and Abrasives | 13.3 | % |  | 14.9 | %
Specialty Chemicals | 11.3 | % |  | 11.9 | %
Electrical | 11.5 | % |  | 11.2 | %
Aftermarket Automotive Supplies | 8.4 | % |  | 8.5 | %
Safety | 4.6 | % |  | 4.5 | %
Welding and Metal Repair | 1.7 | % |  | 1.8 | %
Other | 10.5 | % |  | 9.0 | %
Consolidated Total | 100.0 | % |  | 100.0 | %

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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 + Details
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