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Goodwill and Other Intangible Assets | 6 Months Ended
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Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets | Goodwill and Other Intangible Assets Goodwill The table below summarizes the changes in the carrying amount of goodwill by reportable segment:
| Corporate Finance & Restructuring |  | Forensic and Litigation Consulting |  | Economic Consulting |  | Technology |  | Strategic Communications |  | Total
Balance at December 31, 2018 |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ | 450,997 |  |  | $ | 231,537 |  |  | $ | 268,547 |  |  | $ | 96,723 |  |  | $ | 318,651 |  |  | $ | 1,366,455 |
Accumulated goodwill impairment | — |  |  | — |  |  | — |  |  | — |  |  | (194,139 | ) |  | (194,139 | )
Goodwill, net at December 31, 2018 | 450,997 |  |  | 231,537 |  |  | 268,547 |  |  | 96,723 |  |  | 124,512 |  |  | 1,172,316 |
Foreign currency translation adjustment and other | 292 |  |  | (29 | ) |  | (14 | ) |  | — |  |  | (8 | ) |  | 241 |
Balance at June 30, 2019 |  |  |  |  |  |  |  |  |  |  |
Goodwill | 451,289 |  |  | 231,508 |  |  | 268,533 |  |  | 96,723 |  |  | 318,643 |  |  | 1,366,696 |
Accumulated goodwill impairment | — |  |  | — |  |  | — |  |  | — |  |  | (194,139 | ) |  | (194,139 | )
Goodwill, net at June 30, 2019 | $ | 451,289 |  |  | $ | 231,508 |  |  | $ | 268,533 |  |  | $ | 96,723 |  |  | $ | 124,504 |  |  | $ | 1,172,557 |
Other Intangible Assets Other intangible assets with finite lives, comprised primarily of customer relationships, are amortized over their estimated useful lives. We recorded amortization expense of $1.9 million and $3.7 million for the three and six months ended June 30, 2019, respectively, and $2.1 million and $4.3 million for the three and six months ended June 30, 2018, respectively. We estimate our future amortization expense for our intangible assets with finite lives to be as follows:
Year | As of June 30, 2019(1)
2019 (remaining) | $ | 3,591 |
2020 | 7,172 |
2021 | 6,653 |
2022 | 4,909 |
2023 | 1,691 |
Thereafter | 1,804 |
| $ | 25,820 |
(1) Actual amortization expense to be reported in future periods could differ from these estimates because of new intangible asset acquisitions, changes in useful lives or other relevant factors or changes.

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- References No definition available. + Details
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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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