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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 USD ($) | Sep. 30, 2024 | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($)
Goodwill [Line Items] |  |  |  |
Amortization | $ 26,500,000 |  | $ 27,700,000 |
Non-cash impairment charges | 0 |  | 7,064,000 |
Expected annual amortization expense, remainder of 2025 | 79,600,000 |  |  |
Expected annual amortization expense, in 2026 | 106,000,000.0 |  |  |
Expected annual amortization expense, in 2027 | 105,000,000.0 |  |  |
Expected annual amortization expense, in 2028 | 101,400,000 |  |  |
Expected annual amortization expense, in 2029 | 96,200,000 |  |  |
Expected annual amortization expense, in 2030 | 90,100,000 |  |  |
Expected annual amortization expense, thereafter | 439,200,000 |  |  |
Intangible assets, net | 1,187,535,000 |  |  | $ 1,207,588,000
Completed technology |  |  |  |
Goodwill [Line Items] |  |  |  |
Cost, amortization | 22,800,000 |  | 17,600,000 |
Completed technology | Completed Technology, Surgimend |  |  |  |
Goodwill [Line Items] |  |  |  |
Intangible assets, net | 31,000,000.0 |  |  |
Completed technology | Completed Technology, PriMatrix |  |  |  |
Goodwill [Line Items] |  |  |  |
Intangible assets, net | 23,300,000 |  |  |
Customer Relationships |  |  |  |
Goodwill [Line Items] |  |  |  |
Non-cash impairment charges |  |  | $ 7,100,000 | $ 7,100,000
Codman tradename |  |  |  |
Goodwill [Line Items] |  |  |  |
Impairment of indefinite-lived intangible assets | 0 |  |  |
Tissue Technologies |  |  |  |
Goodwill [Line Items] |  |  |  |
Fair value in excess of carrying amount, percent |  | 21.20% | 19.90% |
Impairment of goodwill | 0 |  |  |
Reporting unit, fair value increase (decrease), percent |  | (0.045) |  |
Neurosurgery |  |  |  |
Goodwill [Line Items] |  |  |  |
Fair value in excess of carrying amount, percent |  | 11.70% |  |
Impairment of goodwill | $ 0 |  |  |
Reporting unit, fair value increase (decrease), percent |  | (0.038) |  |
Instruments |  |  |  |
Goodwill [Line Items] |  |  |  |
Fair value in excess of carrying amount, percent | 22.10% |  |  |
Impairment of goodwill | $ 0 |  |  |
Reporting unit, fair value increase (decrease), percent |  | (0.035) |  |
Measurement Input, Long-Term Revenue Growth Rate | Valuation Technique, Discounted Cash Flow |  |  |  |
Goodwill [Line Items] |  |  |  |
Reporting unit, measurement input increase (decrease) |  | (50) |  |
Measurement Input, Long-Term Revenue Growth Rate | Tissue Technologies | Valuation Technique, Discounted Cash Flow |  |  |  |
Goodwill [Line Items] |  |  |  |
Reporting unit, measurement input |  | 0.025 | 0.020 |
Measurement Input, Long-Term Revenue Growth Rate | Neurosurgery | Valuation Technique, Discounted Cash Flow |  |  |  |
Goodwill [Line Items] |  |  |  |
Reporting unit, measurement input |  | 0.025 |  |
Measurement Input, Long-Term Revenue Growth Rate | Instruments | Valuation Technique, Discounted Cash Flow |  |  |  |
Goodwill [Line Items] |  |  |  |
Reporting unit, measurement input |  | 0.025 |  |
Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow |  |  |  |
Goodwill [Line Items] |  |  |  |
Reporting unit, measurement input increase (decrease) |  | 50 |  |
Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | Codman tradename |  |  |  |
Goodwill [Line Items] |  |  |  |
Indefinite-lived intangible assets, measurement input | 0.130 |  |  |
Measurement Input, Discount Rate | Tissue Technologies | Valuation Technique, Discounted Cash Flow |  |  |  |
Goodwill [Line Items] |  |  |  |
Reporting unit, measurement input |  | 0.125 | 0.145 |
Measurement Input, Discount Rate | Neurosurgery | Valuation Technique, Discounted Cash Flow |  |  |  |
Goodwill [Line Items] |  |  |  |
Reporting unit, measurement input |  | 0.120 |  |
Measurement Input, Discount Rate | Instruments | Valuation Technique, Discounted Cash Flow |  |  |  |
Goodwill [Line Items] |  |  |  |
Reporting unit, measurement input |  | 0.115 |  |

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