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Goodwill And Intangibles (Intangible Assets) (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | $ 115,597 | $ 116,379
Accumulated amortization | (50,598) | (42,108)
Net carrying amount | 64,999 | 74,271
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | 57,897 | 57,866
Accumulated amortization | (16,184) | (11,993)
Net carrying amount | $ 41,713 | $ 45,873
Weighted-average lives | 11 years | 11 years
Technology, trademark and trade name |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | $ 40,414 | $ 41,297
Accumulated amortization | (19,527) | (16,128)
Net carrying amount | $ 20,887 | $ 25,169
Weighted-average lives | 7 years | 7 years
Production know-how |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | $ 9,250 | $ 9,180
Accumulated amortization | (7,983) | (7,415)
Net carrying amount | $ 1,267 | $ 1,765
Weighted-average lives | 7 years | 7 years
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | $ 8,036 | $ 8,036
Accumulated amortization | (6,904) | (6,572)
Net carrying amount | $ 1,132 | $ 1,464
Weighted-average lives | 8 years | 8 years

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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/disclosureRef -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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