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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Goodwill [Line Items] |  |  |  |
Expected annual amortization expense, remainder of 2019 | $ 32,600 |  | $ 32,600 |
Expected annual amortization expense, 2020 | 65,200 |  | 65,200 |
Expected annual amortization expense, 2021 | 64,100 |  | 64,100 |
Expected annual amortization expense, 2022 | 60,600 |  | 60,600 |
Expected annual amortization expense, 2023 | 59,800 |  | 59,800 |
Expected annual amortization expense, 2024 | 58,900 |  | 58,900 |
Expected annual amortization expense, thereafter | 535,600 |  | 535,600 |
Total revenue, net | 383,645 | $ 366,190 | 743,335 | $ 723,272
Intangible asset amortization |  |  | $ 5,764 | $ 0
Contract Manufacturing Customer, Notified By FDA To Remove Product From Market | Private Label | Customer Relationships |  |  |  |
Goodwill [Line Items] |  |  |  |
Intangible asset amortization | $ 5,800 |  |  |

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