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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill | The changes in the carrying amount of goodwill and accumulated impairment (loss) during the nine months ended September 30, 2017 and year ended December 31, 2016 were as follows:
|  | Nine Months Ended September 30, 2017 |  |  | Twelve Months Ended December 31, 2016 |
|  | Gross Carrying Amount |  |  | Accumulated Impairment (Loss) |  |  | Net |  |  | Gross Carrying Amount |  |  | Accumulated Impairment (Loss) |  |  | Net |
Beginning balance at January 1 |  | $ | 727,999 |  |  | $ | (139,414 | ) |  | $ | 588,585 |  |  | $ | 339,117 |  |  | $ | (139,414 | ) |  | $ | 199,703 |
Acquired goodwill(1) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 396,027 |  |  |  | — |  |  |  | 396,027 |
Sale of business(2) |  |  | (3,115 | ) |  |  | — |  |  |  | (3,115 | ) |  |  | — |  |  |  | — |  |  |  | — |
Impairment loss(3) |  |  | — |  |  |  | (4,862 | ) |  |  | (4,862 | ) |  |  | — |  |  |  | — |  |  |  | — |
Foreign currency translation |  |  | 8,491 |  |  |  | — |  |  |  | 8,491 |  |  |  | (7,145 | ) |  |  | — |  |  |  | (7,145 | )
Ending balance at September 30, 2017 and December 31, 2016 |  | $ | 733,375 |  |  | $ | (144,276 | ) |  | $ | 589,099 |  |  | $ | 727,999 |  |  | $ | (139,414 | ) |  | $ | 588,585 |
(1) | During 2016, the Company recorded $396,027 of goodwill related to the Newport Merger.
(2) | In 2017, the Company sold its Data Analytics business and, as a result, charged the related goodwill of $3,115 to the gain on sale of business.
(3) | In 2017, the Company recorded an impairment loss of $4,862 related to the write-off of goodwill during the nine months ended September 30, 2017, related to the discontinuation of a product line and consolidation of two manufacturing plants.
Intangible Assets | Components of the Company’s intangible assets are comprised of the following:
As of September 30, 2017: |  | Gross |  |  | Impairment Charges(1) |  |  | Accumulated Amortization |  |  | Foreign Currency Translation |  |  | Net |
Completed technology |  | $ | 176,586 |  |  | $ | (105 | ) |  | $ | (114,095 | ) |  | $ | 49 |  |  | $ | 62,435 |
Customer relationships |  |  | 285,044 |  |  |  | (1,406 | ) |  |  | (43,397 | ) |  |  | 832 |  |  |  | 241,073 |
Patents, trademarks, trade names and other |  |  | 111,723 |  |  |  | — |  |  |  | (38,855 | ) |  |  | (42 | ) |  |  | 72,826 |
|  | $ | 573,353 |  |  | $ | (1,511 | ) |  | $ | (196,347 | ) |  | $ | 839 |  |  | $ | 376,334 |
(1) | In 2017, the Company recorded impairment charges of $1,511 related to the write-off of intangible assets during the nine months ended September 30, 2017, related to the discontinuation of a product line and consolidation of two manufacturing plants.
As of December 31, 2016: |  | Gross |  |  | Impairment Charges |  |  | Accumulated Amortization |  |  | Foreign Currency Translation |  |  | Net |
Completed technology(1) |  | $ | 176,586 |  |  | $ | — |  |  | $ | (97,707 | ) |  | $ | (1,068 | ) |  | $ | 77,811 |
Customer relationships(1) |  |  | 285,044 |  |  |  | — |  |  |  | (29,709 | ) |  |  | (3,404 | ) |  |  | 251,931 |
Patents, trademarks, trade names and other(1) |  |  | 111,723 |  |  |  | — |  |  |  | (33,397 | ) |  |  | (64 | ) |  |  | 78,262 |
|  | $ | 573,353 |  |  | $ | — |  |  | $ | (160,813 | ) |  | $ | (4,536 | ) |  | $ | 408,004 |
(1) | During 2016, the Company recorded $404,506 of separately identified intangible assets related to the Newport Merger, of which $75,386 was completed technology, $247,793 was customer relationships and $81,327 was patents, trademarks, trade names, in-process research and development and other. During 2016, the Company also recorded $4,302 of unfavorable lease commitments, which is recorded in other liabilities in the balance sheet.
Estimated Net Amortization Expense | Aggregate net amortization expense related to acquired intangible assets and unfavorable lease commitments for future years is as follows:
Year |  | Amount |
2017 (remaining) |  | $ | 10,767 |
2018 |  |  | 43,273 |
2019 |  |  | 40,160 |
2020 |  |  | 28,115 |
2021 |  |  | 20,302 |
2022 |  |  | 17,621 |
Thereafter |  |  | 157,010 |

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