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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill | The changes in the carrying amount of goodwill and accumulated impairment losses were as follows:
|  | 2019 |  |  | 2018 |
|  | Gross Carrying Amount |  |  | Accumulated Impairment Loss |  |  | Net |  |  | Gross Carrying Amount |  |  | Accumulated Impairment Loss |  |  | Net |
Beginning balance at January 1 |  | $ | 731,272 |  |  | $ | (144,276 | ) |  | $ | 586,996 |  |  | $ | 735,323 |  |  | $ | (144,276 | ) |  | $ | 591,047 |
Acquired goodwill(1) |  |  | 473,951 |  |  |  | — |  |  |  | 473,951 |  |  |  | — |  |  |  | — |  |  |  | — |
Foreign currency translation |  |  | (2,493 | ) |  |  | — |  |  |  | (2,493 | ) |  |  | (4,051 | ) |  |  | — |  |  |  | (4,051 | )
Ending balance at December 31 |  | $ | 1,202,730 |  |  | $ | (144,276 | ) |  | $ | 1,058,454 |  |  | $ | 731,272 |  |  | $ | (144,276 | ) |  | $ | 586,996 |
(1) | During the twelve months ended December 31, 2019, the Company recorded $ 473,951 of goodwill related to the ESI Merger.
Intangible Assets | Intangible Assets Components of the Company’s acquired intangible assets are comprised of the following:
As of December 31, 2019 |  | Gross |  |  | Accumulated Impairment Charges |  |  | Accumulated Amortization |  |  | Foreign Currency Translation |  |  | Net |
Completed technology(1) |  | $ | 446,431 |  |  | $ | (105 | ) |  | $ | (178,310 | ) |  | $ | (208 | ) |  | $ | 267,808 |
Customer relationships(1) |  |  | 308,144 |  |  |  | (1,406 | ) |  |  | (84,167 | ) |  |  | (1,361 | ) |  |  | 221,210 |
Patents, trademarks, trade names and other |  |  | 120,895 |  |  |  | — |  |  |  | (45,505 | ) |  |  | 222 |  |  |  | 75,612 |
|  | $ | 875,470 |  |  | $ | (1,511 | ) |  | $ | (307,982 | ) |  | $ | (1,347 | ) |  | $ | 564,630 |
(1) | During the twelve months ended December 31, 2019, the Company recorded $ 316,200 of separately identified intangible assets related to the ESI Merger, of which $ 274,000 was completed technology, $ 25,400 was customer relationships and $ 16,800 was trademarks, trade names and backlog. Separately, on January 1, 2019, the Company reclassified $ 6,428 of gross favorable lease assets and $ 3,445 of related accumulated amortization from patents, trademarks, trade names and other to the right-of-use asset line in the balance sheet.
As of December 31, 2018 |  | Gross |  |  | Accumulated Impairment Charges |  |  | Accumulated Amortization |  |  | Foreign Currency Translation |  |  | Net |
Completed technology |  | $ | 172,431 |  |  | $ | (105 | ) |  | $ | (137,283 | ) |  | $ | (73 | ) |  | $ | 34,970 |
Customer relationships |  |  | 282,744 |  |  |  | (1,406 | ) |  |  | (63,788 | ) |  |  | (269 | ) |  |  | 217,281 |
Patents, trademarks, trade names and other |  |  | 110,523 |  |  |  | — |  |  |  | (42,954 | ) |  |  | (13 | ) |  |  | 67,556 |
|  | $ | 565,698 |  |  | $ | (1,511 | ) |  | $ | (244,025 | ) |  | $ | (355 | ) |  | $ | 319,807 |
Estimated Net Amortization Expense | Aggregate net amortization expense related to acquired intangible assets for future years is:
Year |  | Amount |
2020 |  | $ | 55,808 |
2021 |  |  | 47,720 |
2022 |  |  | 45,254 |
2023 |  |  | 44,902 |
2024 |  |  | 43,985 |
Thereafter |  | $ | 271,061 |

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