Basis of Presentation and Summary of Significant Accounting Policies - Goodwill and Other Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2019	May 31, 2019	Dec. 31, 2018
Summary of Goodwill and Other Identifiable Intangible Assets
Goodwill	$ 93,513		$ 86,646
Total goodwill and other identifiable intangible assets, net	309,781		306,439
Complete technology
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	242,813		235,413
Less: accumulated amortization	(44,786)		(35,070)
Trade name
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	2,642		2,642
Less: accumulated amortization	(1,147)		(1,048)
Customer relationships
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	29,600		29,600
Less: accumulated amortization	(12,854)		(11,744)
Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	50,298		36,298
Less: accumulated amortization	(14,885)		(4,838)
Total goodwill and other identifiable intangible assets, net	35,413		31,460
Aziyo and CorMatrix | Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	17,696		17,696
Novan | Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	12,000	$ 12,000	0
Palvella | Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	10,000		10,000
Selexis | Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	8,602		8,602
Dianomi | Commercial license rights
Summary of Goodwill and Other Identifiable Intangible Assets
Definite lived intangible assets	$ 2,000		$ 0