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Goodwill and Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in the carrying value of Goodwill | The changes in the carrying value of Goodwill for the three months ended March 31, 2018 were as follows:
| Goodwill |  | Accumulated Impairment Losses |  | Total
Balance as of December 31, 2017 | $ | 227,224 |  |  | $ | (41,180 | ) |  | $ | 186,044 |
Purchase accounting adjustments | 4,627 |  |  | — |  |  | 4,627 |
Foreign currency fluctuations | 7,047 |  |  | (1,553 | ) |  | 5,494 |
Balance as of March 31, 2018 | $ | 238,898 |  |  | $ | (42,733 | ) |  | $ | 196,165 |
Acquired Intangible Assets excluding Goodwill | The balances of acquired Intangible Assets, excluding Goodwill, as of March 31, 2018 and December 31, 2017, were as follows:
| Customer Lists |  | Trade Names |  | Technology |  | Total
Balance as of March 31, 2018 |  |  |  |  |  |  |
Original cost | $ | 154,096 |  |  | $ | 32,818 |  |  | $ | 15,894 |  |  | $ | 202,808 |
Accumulated amortization | (23,303 | ) |  | (3,293 | ) |  | (3,915 | ) |  | (30,511 | )
Carrying value | $ | 130,793 |  |  | $ | 29,525 |  |  | $ | 11,979 |  |  | $ | 172,297 |
Weighted average original life (in years) | 15 |  |  | 10 |  |  | 11 |  |  |  |
Balance as of December 31, 2017 |  |  |  |  |  |  |  |  |  |
Original cost | $ | 149,355 |  |  | $ | 31,968 |  |  | $ | 14,589 |  |  | $ | 195,912 |
Accumulated amortization | (17,870 | ) |  | (2,436 | ) |  | (3,259 | ) |  | (23,565 | )
Carrying value | $ | 131,485 |  |  | $ | 29,532 |  |  | $ | 11,330 |  |  | $ | 172,347 |
Weighted average original life (in years) | 15 |  |  | 10 |  |  | 11 |  |  |  |
Estimated aggregate amortization expense of Intangible Assets | Estimated aggregate amortization expense based on the current carrying value of amortizable Intangible Assets for each of the five succeeding years and thereafter is as follows:
Remaining 2018 | $ | 17,115 |
2019 | 22,388 |
2020 | 20,853 |
2021 | 19,170 |
2022 | 16,928 |
Thereafter | 75,843 |
Total | $ | 172,297 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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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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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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