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Basis of Presentation and Summary of Significant Accounting Policies (Goodwill and Other Identifiable Intangible Assets) (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2017 | Sep. 30, 2017 | Mar. 31, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016 | May 03, 2016
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Goodwill |  |  | $ 72,207,000 |  |  | $ 72,207,000 |  | $ 72,207,000 |
Total goodwill and other identifiable intangible assets, net |  |  | 268,785,000 |  |  | 268,785,000 |  | 276,912,000 |
Revenue |  |  | 33,375,000 |  | $ 21,619,000 | 90,638,000 | $ 70,787,000 |  |
Net income (loss) |  |  | $ 8,426,000 |  | $ 1,051,000 | $ 19,566,000 | $ 1,490,000 |  |
Net income (USD per share) | [1] |  | $ 0.36 |  | $ 0.05 | $ 0.84 | $ 0.07 |  |
Complete technology |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Definite lived intangible assets |  |  | $ 182,577,000 |  |  | $ 182,577,000 |  | 182,577,000 |
Less: Accumulated amortization |  |  | (19,710,000) |  |  | (19,710,000) |  | (12,792,000) |
Trade name |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Definite lived intangible assets |  |  | 2,642,000 |  |  | 2,642,000 |  | 2,642,000 |
Less: Accumulated amortization |  |  | (883,000) |  |  | (883,000) |  | (784,000) |
Customer relationships |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Definite lived intangible assets |  |  | 29,600,000 |  |  | 29,600,000 |  | 29,600,000 |
Less: Accumulated amortization |  |  | (9,894,000) |  |  | (9,894,000) |  | (8,784,000) |
Commercial license rights |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Definite lived intangible assets |  |  | 23,721,000 |  |  | 23,721,000 |  | 25,821,000 |
Royalty agreements |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Royalties (percent) |  |  |  |  |  |  |  |  | 20.00%
Acquired in-process research and development |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
IPR&D |  |  | 12,246,000 |  |  | 12,246,000 |  | 12,246,000 |
Aziyo | Royalty agreements |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Royalties received |  | $ 5,000,000 |  |  |  | 5,000,000 |  |  |
Royalties receivable |  |  | $ 5,000,000 |  |  | $ 5,000,000 |  |  |
Royalties (percent) |  |  | 5.00% |  |  | 5.00% |  |  |
Additional royalties receivable under sales-based milestones |  |  | $ 10,000,000 |  |  | $ 10,000,000 |  |  |
Royalties, extended term |  |  |  |  |  | 1 year |  |  |
Forecasted Cash Flows, Effective Interest Rate, Percent |  |  |  |  |  | 26.00% |  |  |
CorMatrix | Commercial license rights |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Definite lived intangible assets |  |  | $ 15,190,000 |  |  | $ 15,190,000 |  | 17,284,000 |
CorMatrix | Royalty agreements |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Royalties (percent) |  |  | 5.00% |  |  | 5.00% |  |  |
Royalty agreement, expiration period |  |  |  |  |  | 10 years |  |  |
Selexis | Commercial license rights |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Definite lived intangible assets |  |  | $ 8,531,000 |  |  | $ 8,531,000 |  | 8,537,000 |
Previously reported understatement |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Revenue |  |  |  | $ 400,000 |  |  |  | 1,300,000 |
Net income (loss) |  |  |  | $ 300,000 |  |  |  | $ 800,000 |
Net income (USD per share) |  |  |  | $ 0.01 |  |  |  | $ 0.04 |
Current period overstatement |  |  |  |  |  |  |  |  |
Summary of Goodwill and Other Identifiable Intangible Assets |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  | 1,300,000 |  |  |
Net income (loss) |  |  |  |  |  | $ 800,000 |  |  |
Net income (USD per share) |  |  |  |  |  | $ 0.04 |  |  |
[1] | The sum of net income per share amounts may not equal the totals due to rounding.

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