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ACQUISITIONS - Acquired Intangibles (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
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Sep. 30, 2021 | Dec. 31, 2020
2021 Acquisitions |  |
Acquired finite-lived intangible assets |  |
Estimated Fair Value of Asset | $ 63,808 |
2021 Acquisitions | Acquired technology |  |
Acquired finite-lived intangible assets |  |
Weighted average useful life (in years) | 10 years |
Estimated Fair Value of Asset | $ 32,145 |
2021 Acquisitions | Customer relationships |  |
Acquired finite-lived intangible assets |  |
Weighted average useful life (in years) | 11 years 6 months |
Estimated Fair Value of Asset | $ 30,258 |
2021 Acquisitions | Trademarks and trade names |  |
Acquired finite-lived intangible assets |  |
Weighted average useful life (in years) | 0 years |
Estimated Fair Value of Asset | $ 0 |
2021 Acquisitions | License agreements and other |  |
Acquired finite-lived intangible assets |  |
Weighted average useful life (in years) | 3 months |
Estimated Fair Value of Asset | $ 1,405 |
2020 Acquisitions |  |
Acquired finite-lived intangible assets |  |
Estimated Fair Value of Asset |  | $ 79,900
2020 Acquisitions | Acquired technology |  |
Acquired finite-lived intangible assets |  |
Weighted average useful life (in years) |  | 4 years
Estimated Fair Value of Asset |  | $ 4,600
2020 Acquisitions | Customer relationships |  |
Acquired finite-lived intangible assets |  |
Weighted average useful life (in years) |  | 13 years
Estimated Fair Value of Asset |  | $ 62,300
2020 Acquisitions | Trademarks and trade names |  |
Acquired finite-lived intangible assets |  |
Weighted average useful life (in years) |  | 4 years
Estimated Fair Value of Asset |  | $ 10,300
2020 Acquisitions | License agreements and other |  |
Acquired finite-lived intangible assets |  |
Weighted average useful life (in years) |  | 3 months
Estimated Fair Value of Asset |  | $ 2,700

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details
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