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Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2019 | Jun. 30, 2019 | Dec. 31, 2018
Finite-Lived Intangible Assets |  |  |
Gross Carrying Value |  | $ 82,821 | $ 82,980
Accumulated Amortization |  | (36,384) | (33,144)
Net Carrying Amount |  | 46,437 | 49,836
Non-compete agreements |  |  |
Finite-Lived Intangible Assets |  |  |
Gross Carrying Value |  | 1,245 | 1,372
Accumulated Amortization |  | (1,082) | (1,046)
Net Carrying Amount |  | 163 | 326
Patents |  |  |
Finite-Lived Intangible Assets |  |  |
Gross Carrying Value |  | 374 | 358
Accumulated Amortization |  | (179) | (165)
Net Carrying Amount |  | 195 | 193
Customer relationships |  |  |
Finite-Lived Intangible Assets |  |  |
Gross Carrying Value |  | 37,093 | 37,129
Accumulated Amortization |  | (12,561) | (11,388)
Net Carrying Amount |  | 24,532 | 25,741
Trademarks and trade names |  |  |
Finite-Lived Intangible Assets |  |  |
Gross Carrying Value |  | 8,478 | 8,481
Accumulated Amortization |  | (3,883) | (3,416)
Net Carrying Amount |  | 4,595 | 5,065
Technology |  |  |
Finite-Lived Intangible Assets |  |  |
Gross Carrying Value |  | 35,631 | 35,640
Accumulated Amortization |  | (18,679) | (17,129)
Net Carrying Amount |  | $ 16,952 | $ 18,511
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 | 4 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 | 18 years |
Weighted Average | Trademarks and trade names |  |  |
Finite-Lived Intangible Assets |  |  |
Weighted Average Amortization Period In Years | 15 years | 15 years |
Weighted Average | Technology |  |  |
Finite-Lived Intangible Assets |  |  |
Weighted Average Amortization Period In Years | 14 years | 14 years |

X
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