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SUBSEQUENT EVENTS - Narrative (Details) | Jul. 17, 2015 USD ($) case acquisition | Jul. 02, 2015 $ / shares | Jul. 02, 2014 USD ($) | Jun. 15, 2011 $ / shares
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Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Distribution of shares, percent |  | 100.00% |  |
Shares of Integra required for share of Sea Spine |  | 3 |  |
Number of businesses acquired | acquisition | 2 |  |  |
Consideration for acquisition | $ 312,000,000 |  |  |
TEI Biosciences Inc. | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Consideration for acquisition | 211,000,000 |  |  |
TEI Medical Inc. | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Consideration for acquisition | $ 101,000,000 |  |  |
TEI Biosciences Inc and TEI Medical Inc. | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Number of active cases | case | 45 |  |  |
Indemnification policy in place | $ 3,000,000.0 |  |  |
2016 Convertible Senior Notes |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Initial conversion price, per share | $ / shares |  |  |  | $ 57.44
Common stock based on initial conversion rate ratio (in shares) |  |  |  | 17.4092
Strike price of the call transaction (in dollars per share) | $ / shares |  |  |  | $ 57.44
Strike price of warrant transactions (in dollars per share) | $ / shares |  |  |  | $ 70.05
2016 Convertible Senior Notes | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Initial conversion price, per share | $ / shares |  | $ 52.83 |  |
Common stock based on initial conversion rate ratio (in shares) |  | 18.9287 |  |
Strike price of the call transaction (in dollars per share) | $ / shares |  | $ 52.83 |  |
Strike price of warrant transactions (in dollars per share) | $ / shares |  | $ 64.43 |  |
July 2014 Amendment | Revolving Credit Facility |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Proceeds from lines of credit |  |  | $ 272,000,000 |
July 2014 Amendment | Revolving Credit Facility | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Proceeds from lines of credit | 310,000,000 |  |  |
Indemnification period - Up to 15 months after close | TEI Biosciences Inc and TEI Medical Inc. | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maximum indemnification from acquisition | $ 30,000,000.0 |  |  |
Period of indemnification | 15 months |  |  |
Indemnification period - Up to 3 years after close | TEI Biosciences Inc and TEI Medical Inc. | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maximum indemnification from acquisition | $ 30,000,000.0 |  |  |
Period of indemnification | 3 years |  |  |
Minimum indemnification from acquisition | $ 20,000,000.0 |  |  |

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