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Business Segments (Revenue by Shipping Location) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenues | $ 541,068 | $ 512,476
Percentage of net sales | 100.00% | 100.00%
Sales | United States | Geographic Concentration Risk |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenues | $ 324,376 | $ 323,322
Percentage of net sales | 60.00% | 63.20%
Sales | Canada | Geographic Concentration Risk |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenues | $ 41,822 | $ 30,492
Percentage of net sales | 7.70% | 5.90%
Sales | Europe & Africa | Geographic Concentration Risk |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenues | $ 59,207 | $ 37,438
Percentage of net sales | 10.90% | 7.30%
Sales | Middle East | Geographic Concentration Risk |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenues | $ 48,352 | $ 43,192
Percentage of net sales | 8.90% | 8.40%
Sales | Asia-Pacific | Geographic Concentration Risk |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenues | $ 36,641 | $ 48,067
Percentage of net sales | 6.80% | 9.40%
Sales | Latin America | Geographic Concentration Risk |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenues | $ 30,670 | $ 29,965
Percentage of net sales | 5.70% | 5.80%

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