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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, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | $ 334,975 |  | $ 334,975 |  | $ 312,508
Accumulated Amortization | (75,263) |  | (75,263) |  | (57,604)
Net Value | 259,712 |  | 259,712 |  | 254,904
Aggregate amortization expense | 7,399 | $ 4,005 | 19,787 | $ 9,578 |
Future estimated amortization expense |  |  |  |  |
2019 | 7,683 |  | 7,683 |  |
2020 | 26,340 |  | 26,340 |  |
2021 | 25,484 |  | 25,484 |  |
2022 | 25,247 |  | 25,247 |  |
2023 and thereafter | 174,958 |  | $ 174,958 |  |
Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period |  |  | 12 years 9 months 18 days |  |
Patents |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 5,972 |  | $ 5,972 |  | 5,427
Accumulated Amortization | (4,635) |  | (4,635) |  | (5,294)
Net Value | 1,337 |  | $ 1,337 |  | 133
Patents | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period |  |  | 3 years |  |
Acquired technology |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 93,153 |  | $ 93,153 |  | 92,389
Accumulated Amortization | (22,856) |  | (22,856) |  | (18,304)
Net Value | 70,297 |  | $ 70,297 |  | 74,085
Acquired technology | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period |  |  | 13 years 4 months 24 days |  |
Customer relationships |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 187,994 |  | $ 187,994 |  | 179,597
Accumulated Amortization | (29,336) |  | (29,336) |  | (20,439)
Net Value | 158,658 |  | $ 158,658 |  | 159,158
Customer relationships | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period |  |  | 13 years 10 months 24 days |  |
Trademarks and trade names |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 33,026 |  | $ 33,026 |  | 21,243
Accumulated Amortization | (9,564) |  | (9,564) |  | (5,914)
Net Value | 23,462 |  | $ 23,462 |  | 15,329
Trademarks and trade names | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period |  |  | 7 years 2 months 12 days |  |
License agreements and other |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Gross Carrying Amount | 14,830 |  | $ 14,830 |  | 13,852
Accumulated Amortization | (8,872) |  | (8,872) |  | (7,653)
Net Value | $ 5,958 |  | $ 5,958 |  | $ 6,199
License agreements and other | Weighted Average |  |  |  |  |
Amortized intangible assets: |  |  |  |  |
Amortization Period |  |  | 11 years |  |

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