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Segment Information (Summary Of Net Revenues By Product And Service) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Product Information [Line Items] |  |  |  |
Total revenues | $ 68,496 | $ 47,818 | $ 130,444 | $ 92,877
BioGlue And BioFoam [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 17,069 | 16,683 | 33,039 | 32,364
JOTEC [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 17,205 |  | 31,665 |
On-X [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 11,888 | 9,862 | 22,197 | 18,722
CardioGenesis Cardiac Laser Therapy [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 1,578 | 2,056 | 2,924 | 3,641
PerClot [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 968 | 936 | 1,940 | 1,755
PhotoFix [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 605 | 557 | 1,146 | 1,008
Cardiac Tissues [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 9,055 | 8,477 | 17,158 | 15,979
Vascular Tissues [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 10,128 | 9,247 | 20,375 | 19,408
Preservation Services [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 19,183 | 17,724 | 37,533 | 35,387
Operating Segments [Member] | Total Products [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | 49,313 | 30,094 | 92,911 | 57,490
Operating Segments [Member] | Total Preservation Services [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Total revenues | $ 19,183 | $ 17,724 | $ 37,533 | $ 35,387

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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