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SEGMENT AND GEOGRAPHIC INFORMATION - Net Sales and Profit by Reportable Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Segment Net Sales |  |  |  |
Total Revenues | $ 365,854 | $ 278,834 | $ 1,089,126 | $ 819,634
Segment Profit |  |  |  |
Operating income | 23,677 | 10,642 | 76,890 | 37,586
Amortization | (5,268) | (5,456) | (15,944) | (14,976)
Codman Specialty Surgical |  |  |  |
Segment Net Sales |  |  |  |
Total Revenues | 239,035 | 164,760 | 714,654 | 480,907
Orthopedics and Tissue Technologies |  |  |  |
Segment Net Sales |  |  |  |
Total Revenues | 126,819 | 114,074 | 374,472 | 338,727
Operating Segments |  |  |  |
Segment Profit |  |  |  |
Operating income | 127,386 | 98,700 | 377,574 | 286,742
Operating Segments | Codman Specialty Surgical |  |  |  |
Segment Profit |  |  |  |
Operating income | 91,871 | 68,289 | 272,480 | 198,242
Operating Segments | Orthopedics and Tissue Technologies |  |  |  |
Segment Profit |  |  |  |
Operating income | 35,515 | 30,411 | 105,094 | 88,500
Segment Reconciling Items |  |  |  |
Segment Profit |  |  |  |
Amortization | (5,268) | (5,456) | (15,944) | (14,976)
Corporate and other |  |  |  |
Segment Profit |  |  |  |
Operating income | $ (98,441) | $ (82,602) | $ (284,740) | $ (234,180)

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