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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, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Net Sales |  |  |  |
Total Revenues | $ 386,861 | $ 370,232 | $ 1,136,924 | $ 983,221
Segment Profit |  |  |  |
Operating income | 56,439 | 57,542 | 139,007 | 98,725
Amortization | (4,113) | (8,343) | (12,838) | (23,393)
Operating Segments |  |  |  |
Segment Profit |  |  |  |
Operating income | 168,416 | 147,193 | 503,614 | 359,643
Corporate and other |  |  |  |
Segment Profit |  |  |  |
Operating income | (107,864) | (81,308) | (351,769) | (237,525)
Codman Specialty Surgical |  |  |  |
Segment Net Sales |  |  |  |
Total Revenues | 256,497 | 239,323 | 754,575 | 640,541
Codman Specialty Surgical | Operating Segments |  |  |  |
Segment Profit |  |  |  |
Operating income | 110,686 | 97,061 | 331,460 | 249,552
Tissue Technologies |  |  |  |
Segment Net Sales |  |  |  |
Total Revenues | 130,364 | 130,909 | 382,349 | 342,680
Tissue Technologies | Operating Segments |  |  |  |
Segment Profit |  |  |  |
Operating income | $ 57,730 | $ 50,132 | $ 172,154 | $ 110,091

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