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Intangible Asset and Goodwill (Tables) | 9 Months Ended
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Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of changes in carrying amount of goodwill by reporting unit | The following tables present goodwill information for each of the reportable segments for the nine months ended September 30, 2017:
Reportable Segment: |  | As of December 31, 2016 |  | Additions to Goodwill (1) |  | Impairment of Goodwill |  | Effect of Exchange Rates (2) |  | As of September 30, 2017
|  | (In thousands)
MID |  | $ | 66,643 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 66,643 |
RSD |  | 138,151 |  |  | 803 |  |  | — |  |  | 3,721 |  |  | 142,675 |
Total |  | $ | 204,794 |  |  | $ | 803 |  |  | $ | — |  |  | $ | 3,721 |  |  | $ | 209,318 |
(1) During the first quarter of 2017, the Company corrected an immaterial error related to an overstatement in prepaids and other current assets that originated in 2016. (2) Effect of exchange rates relates to foreign currency translation adjustments for the period.
|  | As of
|  | September 30, 2017
Reportable Segment: |  | Gross Carrying Amount |  | Accumulated Impairment Losses |  | Net Carrying Amount
|  | (In thousands)
MID |  | $ | 66,643 |  |  | $ | — |  |  | $ | 66,643 |
RSD |  | 142,675 |  |  | — |  |  | 142,675 |
Other |  | 21,770 |  |  | (21,770 | ) |  | — |
Total |  | $ | 231,088 |  |  | $ | (21,770 | ) |  | $ | 209,318 |
Components of intangible assets | The components of the Company’s intangible assets as of September 30, 2017 and December 31, 2016 were as follows:
|  |  | As of September 30, 2017
| Useful Life |  | Gross Carrying Amount (1) |  | Accumulated Amortization |  | Net Carrying Amount
|  |  | (In thousands)
Existing technology | 3 to 10 years |  | $ | 258,792 |  |  | $ | (183,590 | ) |  | $ | 75,202 |
Customer contracts and contractual relationships | 1 to 10 years |  | 68,376 |  |  | (46,133 | ) |  | 22,243 |
Non-compete agreements and trademarks | 3 years |  | 300 |  |  | (300 | ) |  | — |
In-process research and development | Not applicable |  | 5,100 |  |  | — |  |  | 5,100 |
Total intangible assets |  |  | $ | 332,568 |  |  | $ | (230,023 | ) |  | $ | 102,545 |
(1) The change in gross carrying amount reflects the effects of exchange rates during the period.
|  |  | As of December 31, 2016
| Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
|  |  | (In thousands)
Existing technology | 3 to 10 years |  | $ | 256,656 |  |  | $ | (156,577 | ) |  | $ | 100,079 |
Customer contracts and contractual relationships | 1 to 10 years |  | 65,109 |  |  | (37,900 | ) |  | 27,209 |
Non-compete agreements and trademarks | 3 years |  | 300 |  |  | (300 | ) |  | — |
In-process research and development | Not applicable |  | 5,100 |  |  | — |  |  | 5,100 |
Total intangible assets |  |  | $ | 327,165 |  |  | $ | (194,777 | ) |  | $ | 132,388 |
Estimated future amortization expense of intangible assets | The estimated future amortization of intangible assets as of September 30, 2017 was as follows (amounts in thousands):
Years Ending December 31: | Amount
2017 (remaining 3 months) | $ | 11,775 |
2018 | 29,624 |
2019 | 19,877 |
2020 | 19,133 |
2021 | 12,653 |
Thereafter | 9,483 |
| $ | 102,545 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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