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BUSINESS ACQUISITIONS - Schedule of Contingent Consideration (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended |  |  |  | 6 Months Ended
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Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 Level 3 Cash Consideration One | Jan. 15, 2014 Level 3 Cash Consideration One | Dec. 31, 2013 Level 3 Cash Consideration One | Jun. 30, 2014 Level 3 Selling, General and Administrative Expenses Cash Consideration One
Business Acquisition, Contingent Consideration [Roll Forward] |  |  |  |  |  |  |
Balance as of January 1, 2014 |  |  |  | $ 21,124 |  | $ 1,227 |
Contingent consideration from Confluent Surgical acquisition |  |  |  |  | 20,895 |  |
Loss/(gain) from increase/(decrease) in fair value of contingent consideration liabilities | (998) | 0 | [1] |  |  |  | (998)
Fair value at June 30, 2014 |  |  |  | $ 21,124 |  | $ 1,227 |
[1] | See Note 1 of these condensed consolidated financial statements for discussion of the impact of the change in accounting for the medical device excise tax.

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