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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract] |
Summary of Changes in Carrying Amount of Goodwill | Changes in the carrying amount of goodwill for the year ended December 31, 2020 are as follows (in thousands):
Balance as of December 31, 2019 |  | $ | 32,330 |
Adjustment to goodwill(1) |  |  | (84 | )
Impairment of goodwill(2) |  |  | (14,688 | )
Balance as of December 31, 2020 |  | $ | 17,558 |
(1) Included working capital adjustments finalized subsequent to the Sonar acquisition in December 2019, resulting in total consideration of approximately $13.2 million and an adjustment to goodwill in the amount of $84,000 during the year ended December 31, 2020. |
(2) The impairment is recorded on the Company's Consolidated Statement of Operations within Impairment of goodwill. |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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