In-Process Research and Development (Details) - USD ($)		3 Months Ended	9 Months Ended
Jun. 02, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Payment for acquisition of in-process research and development	$ 1,800,000			$ 1,800,000	$ 0
Holdback related to acquisition of in-process research and development	200,000			200,000	0
Research and development	2,000,000	$ 10,296,000	$ 13,016,000	$ 37,851,000	$ 32,573,000
Botulinum Toxin Research Associates, Inc.
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Accrued milestone obligations	$ 16,000,000.0

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+ References

No definition available.

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- Definition

The fair value of assets acquired in noncash investing or financing activities.

+ References

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The cash outflows from the purchase of net carrying value allocated to in-process research and development costs and materials acquired in a business combination.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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