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GOODWILL AND OTHER INTANGIBLE ASSETS (Summary of Intangible Assets) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | $ 457,393 |  | $ 457,393 |  | $ 372,417
Accumulated Amortization | (109,698) |  | (109,698) |  | (81,333)
Net Value | 347,695 |  | 347,695 |  | 291,084
Aggregate amortization expense | 9,686 | $ 7,399 | $ 30,020 | $ 19,787 |
Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period (in years) |  |  | 12 years 7 months 6 days |  |
Patents |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 2,795 |  | $ 2,795 |  | 2,804
Accumulated Amortization | (1,393) |  | (1,393) |  | (1,318)
Net Value | 1,402 |  | $ 1,402 |  | 1,486
Patents | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period (in years) |  |  | 7 years 4 months 24 days |  |
Acquired technology |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 107,529 |  | $ 107,529 |  | 100,511
Accumulated Amortization | (33,322) |  | (33,322) |  | (25,430)
Net Value | 74,207 |  | $ 74,207 |  | 75,081
Acquired technology | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period (in years) |  |  | 12 years 10 months 24 days |  |
Customer relationships |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 283,091 |  | $ 283,091 |  | 217,934
Accumulated Amortization | (50,048) |  | (50,048) |  | (33,924)
Net Value | 233,043 |  | $ 233,043 |  | 184,010
Customer relationships | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period (in years) |  |  | 13 years 3 months 18 days |  |
Trademarks and trade names |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 45,285 |  | $ 45,285 |  | 35,015
Accumulated Amortization | (15,470) |  | (15,470) |  | (11,003)
Net Value | 29,815 |  | $ 29,815 |  | 24,012
Trademarks and trade names | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period (in years) |  |  | 6 years 3 months 18 days |  |
License agreements and other |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 18,693 |  | $ 18,693 |  | 16,153
Accumulated Amortization | (9,465) |  | (9,465) |  | (9,658)
Net Value | $ 9,228 |  | $ 9,228 |  | $ 6,495
License agreements and other | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period (in years) |  |  | 19 years 1 month 6 days |  |

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