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Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disaggregation of Revenue [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 370,785 | $ 349,637
Fastening Systems | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Cutting Tools and Abrasives | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Fluid Power | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Specialty Chemicals | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Electrical | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Aftermarket Automotive Supplies | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Safety | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Welding and Metal Repair | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Other | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
Sales [Member] | Sales Revenue, Net |  |
Disaggregation of Revenue [Line Items] |  |
Concentration Risk, Percentage | 0.00% | 0.00%
United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 295,675 | $ 279,917
Canada |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 75,110 | $ 69,720

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