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DISCONTINUED OPERATIONS (Narrative) (Details) |  | 12 Months Ended | 30 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 02, 2015 director | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2017 USD ($) | Jul. 01, 2015 USD ($) | Oct. 29, 2014 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Income or expense after separation |  | $ 0 | $ 0 | $ (10,370,000) |  |  |
SeaSpine Inc. | Supply Agreement Liability - Current |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Revenue, SeaSpine |  | 700,000 | 800,000 | 6,200,000 |  |  |
Cost of goods sold, SeaSpine |  | 300,000 | 700,000 | 3,800,000 |  |  |
SeaSpine Inc. | Information Technology and Administrative Support |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Revenue, SeaSpine |  |  | $ 300,000 | 2,700,000 |  |  |
SeaSpine Inc. | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Distribution of spinoff shares | 100.00% |  |  |  |  |  |
Shares of Integra for share of SeaSpine | 0.3333 |  |  |  |  |  |
Cash following distribution |  |  |  |  |  | $ 47,178,000 | $ 47,000,000
Gain (loss) recognized as result of distribution |  | $ 0 |  |  |  |  |
Income or expense after separation |  |  |  | $ (10,370,000) | $ 0 |  |
SeaSpine Inc. | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Director |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Number of shared board members | director | 3 |  |  |  |  |  |

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