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BUSINESS ACQUISITIONS AND DIVESTITURE - Narrative (Details) |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended |
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Oct. 02, 2017 USD ($) | May 25, 2017 USD ($) | Feb. 24, 2017 USD ($) | Feb. 23, 2017 USD ($) | Aug. 31, 2017 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Sep. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Jun. 30, 2018 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Oct. 06, 2017 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn from loan |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000 | $ 571,383,000 |
Cash received from working capital adjustment related to business acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  | 26,704,000 |  |
Payment for contingent consideration |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,900,000 |  |
Cost of good sold related to fair value inventory purchase accounting adjustments |  |  |  |  |  | $ 143,245,000 |  |  |  | $ 101,757,000 |  |  |  | 425,032,000 | 287,340,000 |
Cash payment to former shareholders |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 225,552,000 |
Recognized loss on sale of short-term investment |  |  |  |  |  |  |  |  |  |  | $ 2,300,000 |  |  | 0 | 2,287,000 |
Change in fair value of contingent consideration |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,214,000 | (2,773,000) |
Net income |  |  |  |  |  | $ 13,295,000 | $ 11,376,000 | $ 10,992,000 |  | $ 3,159,000 | 10,835,000 | $ 6,394,000 |  | $ 35,663,000 | $ 20,388,000 |
BioD Morselized Amniotic Membrane Based Products | Product Concentration Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of revenue to product (less than) |  |  |  |  |  | 1.00% |  |  |  | 1.00% |  |  |  | 1.00% | 1.00% |
Codman Specialty Surgical |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price received |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 46,400,000
Assets provided upon termination of transitional supply agreement liability |  |  |  |  |  | $ 1,300,000 |  |  |  |  |  |  |  | $ 1,300,000 |  |
Codman Specialty Surgical | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pretax gain on sale of business, included in other income, net |  |  |  |  |  |  |  |  | $ 2,600,000 |  |  |  |  |  |  |
Interest Expense, Intangible Asset Amortization, and External Expenses Related to Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  | 2,400,000 |  |  |  |  |  |  |  | 14,400,000 |  |
Interest Expense, Intangible Asset Amortization, and External Expenses Related to Acquisition | Derma Sciences |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  | $ 2,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Codman |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration for acquisition | $ 1,014,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue of acquired company |  |  |  |  |  | 78,900,000 |  |  |  |  |  |  |  | 236,000,000 |  |
Purchase price adjustment |  |  |  |  |  | (800,000) |  |  |  |  |  |  | $ 3,200,000 | 3,964,000 |  |
Purchase price, working capital adjustments |  |  |  |  |  |  |  |  |  |  |  |  | 6,200,000 |  |  |
Purchase price, inventory adjustments |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000,000 |  |  |
Purchase price, property, plant and equipment adjustment |  |  |  |  |  | 5,500,000 |  |  |  |  |  |  |  |  |  |
Write off of construction in progress |  |  |  |  |  |  |  |  | 6,300,000 |  |  |  |  |  |  |
Codman | Fair Value Adjustment to Inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of good sold related to fair value inventory purchase accounting adjustments |  |  |  |  |  | 2,800,000 |  |  |  |  |  |  |  | 17,300,000 |  |
Codman | Completed technology |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price, intangible asset adjustment |  |  |  |  |  | 4,700,000 |  |  |  |  |  |  |  |  |  |
Derma Sciences |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration for acquisition |  |  | $ 210,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of closing expenses |  |  | 4,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Settlement of stock compensation plan |  |  | 4,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payment to former shareholders |  |  | 201,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Acquired deferred taxes |  |  | $ 14,524,000 |  |  | 14,500,000 |  |  |  |  |  |  |  | 14,500,000 |  |
Deferred tax asset, federal net operating loss |  |  |  |  |  | 39,700,000 |  |  |  |  |  |  |  | 39,700,000 |  |
Deferred tax asset, intangibles |  |  |  |  |  | 16,400,000 |  |  |  |  |  |  |  | 16,400,000 |  |
Deferred tax liabilities, intangibles |  |  |  |  |  | 41,100,000 |  |  |  |  |  |  |  | 41,100,000 |  |
Deferred tax asset, various |  |  |  |  |  | 500,000 |  |  |  |  |  |  |  | 500,000 |  |
Deferred tax liabilities, adjustment to estimated fair value |  |  |  |  |  |  |  |  |  |  | 1,500,000 |  |  |  |  |
Deferred tax assets, adjustment to estimated fair value |  |  |  |  |  |  |  |  | 3,300,000 |  |  |  |  |  |  |
Derma Sciences | BioD Earnout Payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for contingent consideration |  |  |  |  | $ 4,800,000 | 0 |  |  |  |  |  |  |  |  |  |
Revenue volatility percentage |  |  | 13.50% |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration maximum payout |  |  | $ 26,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated fair value of the remaining portion of the contingent consideration, liability |  |  | 9,100,000 |  |  |  |  |  | 300,000 |  |  |  |  |  |  |
Derma Sciences | Product Payment Contingent Consideration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration maximum payout |  |  | 29,700,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated fair value of the remaining portion of the contingent consideration, liability |  |  | $ 26,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Product payment rate |  |  | 98.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Change in fair value of contingent consideration |  |  |  |  |  |  |  |  |  |  | $ 900,000 |  |  |  |  |
Payment for the product payment |  | $ 26,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derma Sciences | Medihoney Earnout Payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for contingent consideration |  |  |  |  |  |  | $ 2,000,000 |  |  |  |  |  |  |  |  |
Revenue volatility percentage |  |  | 27.50% |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration maximum payout |  |  | $ 5,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated fair value of the remaining portion of the contingent consideration, liability |  |  | $ 1,400,000 |  |  | $ 200,000 |  |  | $ 1,400,000 |  |  |  |  | $ 200,000 |  |
Derma Sciences | Measurement Input, Discount Rate | BioD Earnout Payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discounted cash flow model, measurement input |  |  | 0.030 |  |  |  |  |  |  |  |  |  |  |  |  |
Derma Sciences | Measurement Input, Discount Rate | Product Payment Contingent Consideration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discounted cash flow model, measurement input |  |  | 0.025 |  |  |  |  |  |  |  |  |  |  |  |  |
Derma Sciences | Measurement Input, Discount Rate | Medihoney Earnout Payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discounted cash flow model, measurement input |  |  | 0.045 |  |  |  |  |  |  |  |  |  |  |  |  |

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