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Identifiable Intangible Assets from Acquisition | 3 Months Ended
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Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract] |
Identifiable Intangible Assets from Acquisitions | (12) Identifiable Intangible Assets from Acquisitions Identifiable intangible assets from acquisitions consisted of the following (in thousands):
|  | As of December 31, 2018 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net |
Customer relationships |  | $ | 12,368 |  |  | $ | 295 |  |  | $ | 12,073 |
Technologies |  |  | 5,879 |  |  |  | 258 |  |  |  | 5,621 |
Non-compete agreements |  |  | 2,559 |  |  |  | 184 |  |  |  | 2,375 |
Tradenames |  |  | 672 |  |  |  | 44 |  |  |  | 628 |
Total identifiable intangible assets from acquisitions |  | $ | 21,478 |  |  | $ | 781 |  |  | $ | 20,697 |
|  | As of March 31, 2019 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net |
Customer relationships |  | $ | 12,368 |  |  | $ | 913 |  |  | $ | 11,455 |
Technologies |  |  | 5,879 |  |  |  | 748 |  |  |  | 5,131 |
Non-compete agreements |  |  | 2,559 |  |  |  | 560 |  |  |  | 1,999 |
Tradenames |  |  | 672 |  |  |  | 128 |  |  |  | 544 |
Total identifiable intangible assets from acquisitions |  | $ | 21,478 |  |  | $ | 2,349 |  |  | $ | 19,129 |
Amortizable intangible assets are amortized on a straight-line basis over their useful lives. Customer relationships, acquired technologies, tradenames, and non-compete agreements have a weighted average useful life from date of purchase of 5 years, 3 years, 2 years, 1 - 2 years, respectively. Aggregate amortization expense incurred by the Company for the three months ended March 31, 2019 was approximately $1.6 million. Based upon the current amount of acquired identifiable intangible assets subject to amortization, the estimated remaining amortization expense as of March 31, 2019 for the next five years is as follows: $4.6 million in 2019, $5.7 million in 2020, $4.2 million in 2021, $2.5 million in 2022, and $2.1 million in 2023.

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- Definition The entire disclosure for goodwill and 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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