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Other Intangible Assets | 6 Months Ended
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Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Other intangible assets | Other Intangible Assets Other intangible assets are as follows (in thousands):
| June 30, 2019 |  | December 31, 2018
| Cost |  | Accumulated Amortization |  | Cost |  | Accumulated Amortization
Finite-lived intangible assets: |  |  |  |  |  |  |
Patents and technology | $ | 18,851 |  |  | $ | 7,270 |  |  | $ | 18,884 |  |  | $ | 6,689 |
Customer lists | 15,367 |  |  | 5,636 |  |  | 15,367 |  |  | 5,259 |
Trademarks and brand names | 1,358 |  |  | 1,140 |  |  | 1,485 |  |  | 1,149 |
Total finite-lived intangible assets acquired | 35,576 |  |  | 14,046 |  |  | 35,736 |  |  | 13,097 |
Deferred financing costs | — |  |  | — |  |  | 1,924 |  |  | 496 |
Total amortizable intangible assets | 35,576 |  |  | $ | 14,046 |  |  | 37,660 |  |  | $ | 13,593 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |
Trademarks and brand names | 2,760 |  |  |  |  | 2,760 |  |  |
Total other intangible assets | $ | 38,336 |  |  |  |  | $ | 40,420 |  |  |
Carrying value: |  |  |  |  |  |  |
Other intangible assets, net | $ | 24,290 |  |  |  |  | $ | 26,827 |  |  |
Finite-lived intangible assets acquired are amortized on a straight-line basis over two to 20 years. Amortization of finite-lived intangible assets acquired totaled $0.5 million and $0.3 million for the three months ended June 30, 2019 and 2018, respectively, and $1.0 million and $0.7 million for the six months ended June 30, 2019 and 2018. Amortization of deferred financing costs totaled zero and $0.1 million for the three months ended June 30, 2019 and 2018, respectively, and $1.4 million and 0.2 million for the six months ended June 30, 2019 and 2018.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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