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Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2018
Intangible assets | Intangible assets consisted of the following at March 31, 2018 (in thousands):
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Weighted Average Useful Life (in years) |
Technology – developed |  | $ | 51,860 |  |  | $ | (3,898 | ) |  |  | 19 |
Patents |  |  | 240 |  |  |  | (240 | ) |  |  | 8 |
Customer relationships |  |  | 102,210 |  |  |  | (11,446 | ) |  |  | 14 |
Trademark – definite lived |  |  | 2,160 |  |  |  | (75 | ) |  |  | 20 |
Trademark – indefinite lived |  |  | 700 |  |  |  | — |  |  |  | — |
Other intangibles |  |  | 1,066 |  |  |  | (304 | ) |  |  | 3 |
Total intangible assets |  | $ | 158,236 |  |  | $ | (15,963 | ) |  |  | 16 |
Intangible assets consisted of the following at December 31, 2017 (in thousands):
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Weighted Average Useful Life (in years) |
Technology – developed |  | $ | 51,801 |  |  | $ | (3,201 | ) |  |  | 19 |
Patents |  |  | 240 |  |  |  | (238 | ) |  |  | 8 |
Customer relationships |  |  | 102,120 |  |  |  | (9,636 | ) |  |  | 14 |
Trademarks – definite lived |  |  | 2,160 |  |  |  | (47 | ) |  |  | 20 |
Trademarks – indefinite lived |  |  | 700 |  |  |  | — |  |  |  | — |
Other intangibles |  |  | 1,063 |  |  |  | (209 | ) |  |  | 3 |
Total intangible assets |  | $ | 158,084 |  |  | $ | (13,331 | ) |  |  | 16 |
Schedule of Amortization Expense for Amortized Intangible Assets | As of March 31, 2018, the Company expects to record amortization expense as follows (in thousands):
Years Ending |  | Amortization Expense |
December 31, 2018 (nine months remaining) |  | $ | 7,978 |
December 31, 2019 |  |  | 10,513 |
December 31, 2020 |  |  | 9,910 |
December 31, 2021 |  |  | 9,395 |
December 31, 2022 |  |  | 9,395 |

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- Definition Schedule Of Finite Lived And Indefinite Lived Intangible Assets [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of amortization expense of assets, excluding financial assets, that lack physical substance, having a limited useful life. + References No definition available. + Details
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