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GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Company's Identifiable Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 1,415,709 | $ 1,415,787
Accumulated Amortization | (401,482) | (384,196)
Net | 1,014,227 | 1,031,591
Codman tradename |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | 163,680 | 163,126
Net | 163,680 | 163,126
IPR&D |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Other Indefinite-lived Intangible Assets | $ 1,000 | $ 1,000
Completed technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 19 years | 19 years
Cost | $ 881,856 | $ 880,623
Accumulated Amortization | (225,350) | (213,702)
Net | $ 656,506 | $ 666,921
Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 12 years | 12 years
Cost | $ 221,193 | $ 222,575
Accumulated Amortization | (123,896) | (119,393)
Net | $ 97,297 | $ 103,182
Trademarks/brand names |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 28 years | 28 years
Cost | $ 103,472 | $ 103,873
Accumulated Amortization | (29,190) | (28,514)
Net | $ 74,282 | $ 75,359
Supplier relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 27 years | 27 years
Cost | $ 34,721 | $ 34,721
Accumulated Amortization | (18,304) | (17,947)
Net | $ 16,417 | $ 16,774
All other |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 4 years | 4 years
Cost | $ 10,787 | $ 10,869
Accumulated Amortization | (4,742) | (4,640)
Net | $ 6,045 | $ 6,229

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