Basis of Presentation and Summary of Significant Accounting Policies - Goodwill and Other Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Summary of Goodwill and Other Identifiable Intangible Assets
Goodwill	$ 85,961	$ 85,959
Total goodwill and other identifiable intangible assets, net	311,267	314,543
Complete technology
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	228,413	222,900
Less: Accumulated amortization	(26,176)	(23,301)
Trade name
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	2,642	2,642
Less: Accumulated amortization	(949)	(916)
Customer relationships
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	29,600	29,600
Less: Accumulated amortization	(10,634)	(10,264)
Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	26,298	26,298
Less: Accumulated amortization	(6,329)	(6,772)
Total goodwill and other identifiable intangible assets, net	19,969	19,526
Acquired in-process research and development
Summary of Goodwill and Other Identifiable Intangible Assets
IPR&D	2,410	7,923
Aziyo and CorMatrix \| Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	17,696	17,696
Selexis \| Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	$ 8,602	$ 8,602

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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