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Goodwill | 12 Months Ended
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Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill | (9) Goodwill The following are the changes in the carrying amount of goodwill by geographic reporting unit:
(in thousands) |  | Americas |  | EMEA |  | APAC |  | Total
Balance at December 31, 2017 |  | $ | — |  |  | $ | 191,948 |  |  | $ | 38,934 |  |  | $ | 230,882 |
Acquisitions and adjustments |  | — |  |  | (331) |  |  | — |  |  | (331) |
Effect of foreign currency exchange rates |  | — |  |  | (7,597) |  |  | (1,620) |  |  | (9,217) |
Balance at December 31, 2018 |  | — |  |  | 184,020 |  |  | 37,314 |  |  | 221,334 |
Effect of foreign currency exchange rates |  | — |  |  | 2,675 |  |  | (833) |  |  | 1,842 |
Balance at December 31, 2019 |  | $ | — |  |  |  | $ | 186,695 |  |  |  | $ | 36,481 |  |  |  | $ | 223,176 |
The effect of foreign currency exchange in this table reflects the impact on goodwill of amounts recorded in currencies other than the U.S. dollar on the financial statements of subsidiaries in these geographic areas resulting from the yearly effect of foreign currency translation between the applicable functional currency and the U.S. dollar. For discussion on acquisitions, see Note 3. For discussion on goodwill impairment testing, see Note 2.

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- Definition The entire disclosure for goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2144439 + Details
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