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GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Company's Identifiable Intangible Assets (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 1,405,305 | $ 1,398,921
Accumulated Amortization | (364,955) | (319,425)
Net | 1,040,350 | 1,079,496
Codman tradename |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | 160,841 | 162,054
Net | $ 160,841 | $ 162,054
Completed technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 19 years | 19 years
Cost | $ 873,973 | $ 855,679
Accumulated Amortization | (201,067) | (167,384)
Net | $ 672,906 | $ 688,295
Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 13 years | 13 years
Cost | $ 221,580 | $ 231,448
Accumulated Amortization | (114,498) | (106,859)
Net | $ 107,082 | $ 124,589
Trademarks/brand names |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 28 years | 28 years
Cost | $ 103,463 | $ 104,061
Accumulated Amortization | (27,433) | (24,764)
Net | $ 76,030 | $ 79,297
Supplier relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 27 years | 27 years
Cost | $ 34,721 | $ 34,721
Accumulated Amortization | (17,590) | (16,519)
Net | $ 17,131 | $ 18,202
All other |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 4 years | 4 years
Cost | $ 10,727 | $ 10,958
Accumulated Amortization | (4,367) | (3,899)
Net | $ 6,360 | $ 7,059

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