Net Sales and Profit by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Segment Net Sales
Revenues	$ 236,770	$ 202,534
Segment Profit
Operating income	22,119	21,240
Amortization	(3,471)	(1,729)
Operating Segments
Segment Profit
Operating income	77,856	80,252
Operating Segments \| Specialty Surgical Solutions
Segment Net Sales
Revenues	151,175	140,058
Segment Profit
Operating income	57,581	60,332
Operating Segments \| Orthopedics and Tissue Technologies
Segment Net Sales
Revenues	85,595	62,476
Segment Profit
Operating income	20,275	19,920
Corporate and other
Segment Profit
Operating income	$ (52,266)	$ (57,283)

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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