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Intangible Assets Other Than Goodwill (Tables) | 9 Months Ended
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Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Goodwill [Table Text Block] | Intangible assets other than goodwill consist primarily of licenses, product lines, customer relationships and trademarks. Amortized intangible assets are included in intangibles in the accompanying condensed consolidated balance sheets. Trademarks are disclosed separately in the accompanying condensed consolidated balance sheets. Intangible assets as of September 30, 2020 and December 31, 2019 include the following (in thousands, except for weighted useful lives):
|  |  |  |  |  | September 30, 2020 |  |  | December 31, 2019 |
|  | Weighted Useful Lives |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Amount |
|  | (Years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortized Intangible Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Licenses |  |  | 5.81 |  |  | $ | 20,130 |  |  | $ | (20,130 | ) |  | $ | — |  |  | $ | 20,130 |  |  | $ | (19,988 | ) |  | $ | 142 |
Product lines |  |  | 10.36 |  |  |  | 4,846 |  |  |  | (2,562 | ) |  |  | 2,284 |  |  |  | 4,846 |  |  |  | (1,800 | ) |  |  | 3,046 |
Customer relationships |  |  | 4.90 |  |  |  | 3,152 |  |  |  | (3,152 | ) |  |  | — |  |  |  | 3,152 |  |  |  | (3,152 | ) |  |  | — |
Trade names |  |  | 5.00 |  |  |  | 3,000 |  |  |  | (3,000 | ) |  |  | — |  |  |  | 3,000 |  |  |  | (3,000 | ) |  |  | — |
Non-compete agreements |  |  | 5.00 |  |  |  | 200 |  |  |  | (200 | ) |  |  | — |  |  |  | 200 |  |  |  | (200 | ) |  |  | — |
Total amortized intangible assets |  |  |  |  |  | $ | 31,328 |  |  | $ | (29,044 | ) |  | $ | 2,284 |  |  | $ | 31,328 |  |  | $ | (28,140 | ) |  | $ | 3,188 |
Unamortized Intangible Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks |  |  |  |  |  | $ | 300 |  |  | $ | — |  |  | $ | 300 |  |  | $ | 300 |  |  | $ | — |  |  | $ | 300 |

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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