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GOODWILL AND INTANGIBLE ASSETS (Tables) | 3 Months Ended
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Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill and Intangible Assets | The Company’s goodwill and purchased intangible assets as of March 31, 2021 and December 31, 2020 are as follows:
| March 31, 2021 |  | December 31, 2020
| Gross |  | Additions |  | Accumulated Amortization |  | Net |  | Gross |  | Additions |  |  |  | Accumulated Amortization |  | Net
| (In thousands)
Goodwill | $ | 24,783 |  |  | $ | 36,255 |  |  | $ | — |  |  | $ | 61,038 |  |  | $ | 24,783 |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | 24,783 |
Intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other indefinite-lived intangibles | 286 |  |  | — |  |  | — |  |  | 286 |  |  | 286 |  |  | — |  |  |  |  | — |  |  | 286 |
Intangible assets with finite lives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed technology | 13,100 |  |  | 6,900 |  |  | (6,075) |  |  | 13,925 |  |  | 13,100 |  |  | — |  |  |  |  | (5,276) |  |  | 7,824 |
Customer relationships | 26,421 |  |  | 13,500 |  |  | (6,653) |  |  | 33,268 |  |  | 23,100 |  |  | 3,321 |  |  |  |  | (5,723) |  |  | 20,698 |
Trade names | — |  |  | 500 |  |  | (62) |  |  | 438 |  |  | — |  |  | — |  |  |  |  | — |  |  | — |
Total purchased intangible assets | $ | 39,807 |  |  | $ | 20,900 |  |  | $ | (12,790) |  |  | $ | 47,917 |  |  | $ | 36,486 |  |  | $ | 3,321 |  |  |  |  | $ | (10,999) |  |  | $ | 28,808 |
Schedule of Amortization Expense | Amortization expense related to finite-lived intangible assets are as follows:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2021 |  | 2020 |  |
|  |  |  |  | (In thousands)
Developed technology |  |  |  |  | $ | 799 |  |  | $ | 546 |  |  |
Customer relationships |  |  |  |  | 930 |  |  | 701 |  |  |
Trade names |  |  |  |  | 62 |  |  | — |  |  |
Total amortization expense |  |  |  |  | $ | 1,791 |  |  | $ | 1,247 |  |  |

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + 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 + Details
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