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Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Finite-Lived Intangible Assets |  |
Gross Carrying Value | $ 82,980 | $ 88,181
Accumulated Amortization | (33,144) | (30,741)
Net Carrying Amount | 49,836 | 57,440
Non-compete agreements |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Value | 1,372 | 4,238
Accumulated Amortization | (1,046) | (3,100)
Net Carrying Amount | 326 | 1,138
Patents |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Value | 358 | 389
Accumulated Amortization | (165) | (164)
Net Carrying Amount | 193 | 225
Customer relationships |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Value | 37,129 | 37,679
Accumulated Amortization | (11,388) | (9,171)
Net Carrying Amount | 25,741 | 28,508
Trademarks and trade names |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Value | 8,481 | 10,085
Accumulated Amortization | (3,416) | (4,091)
Net Carrying Amount | 5,065 | 5,994
Technology |  |
Finite-Lived Intangible Assets |  |
Gross Carrying Value | 35,640 | 35,790
Accumulated Amortization | (17,129) | (14,215)
Net Carrying Amount | $ 18,511 | $ 21,575
Weighted Average |  |
Finite-Lived Intangible Assets |  |
Weighted Average Amortization Period In Years | 15 years |
Weighted Average | Non-compete agreements |  |
Finite-Lived Intangible Assets |  |
Weighted Average Amortization Period In Years | 4 years | 5 years
Weighted Average | Patents |  |
Finite-Lived Intangible Assets |  |
Weighted Average Amortization Period In Years | 10 years | 10 years
Weighted Average | Customer relationships |  |
Finite-Lived Intangible Assets |  |
Weighted Average Amortization Period In Years | 18 years | 17 years
Weighted Average | Trademarks and trade names |  |
Finite-Lived Intangible Assets |  |
Weighted Average Amortization Period In Years | 15 years | 14 years
Weighted Average | Technology |  |
Finite-Lived Intangible Assets |  |
Weighted Average Amortization Period In Years | 14 years | 14 years

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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