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Commitments and Contingencies - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Operating lease, termination period		36 months
Operating lease, period to provide written notice to terminate contract		12 months
Operating lease, equivalent rent termination period		6 months
Operating lease, renewal term		60 months
Operating lease, rent escalation percentage		3.00%
Impairment recorded to right-of-use assets related to original lease		$ 80,000
Purchase commitment, amount		4,602,000
Total rent expense			$ 334,000
Loss Contingencies [Line Items]
Related party borrowings		0	68,767,000
Loss contingency accrual		0	$ 0
ALPHAEON
Loss Contingencies [Line Items]
Related party borrowings	$ 2,500,000
Daewoong
Loss Contingencies [Line Items]
Contingent milestone payment (up to)		$ 10,500,000

X

- Definition

Lessee, Operating Lease, Period Of Written Notice Prior To Lease Terminate Date

+ References

No definition available.

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- Definition

Lessee, Operating Lease, Termination Fee, Period Of Rent Equivalent

+ References

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- Definition

Lessee, Operating Lease, Termination Period

+ References

No definition available.

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- Definition

Milestone Payment In Connection With License And Supply Agreement

+ References

No definition available.

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- Definition

Non-Cash Related Party Borrowings

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- Definition

Operating Lease, Percentage Of Annual Rent Escalation

+ References

No definition available.

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- References

No definition available.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

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- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of loss contingency liability.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

Amount of loss from impairment of right-of-use asset from operating lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 25
-Paragraph 6
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=77888369&loc=SL77918431-209957

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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No definition available.

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