Commitments and contingencies disclosure.

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Indemnification obligations claims outstanding.

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Non-cancelable operating leases expiration year.

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Termination period of lease.

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The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
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-URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707

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- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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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
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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Number of plaintiffs that have filed claims pertaining to a loss contingency.

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

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Commitments and Contingencies - Additional Information (Details)	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 03, 2019 lawsuit	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Commitments And Contingencies Disclosure [Line Items]
Rent expense		$ 373,000	$ 256,000	$ 700,000	$ 509,000
Deferred rent liability		179,000		179,000		$ 184,000
Indemnification obligations material claims, outstanding		0		$ 0		$ 0
Accrued contingency		$ 0
Subsequent Event
Commitments And Contingencies Disclosure [Line Items]
Number of lawsuits \| lawsuit	2
United States
Commitments And Contingencies Disclosure [Line Items]
Non-cancelable operating leases expiration year				2021
China
Commitments And Contingencies Disclosure [Line Items]
Non-cancelable operating leases expiration year				2022
HONG KONG
Commitments And Contingencies Disclosure [Line Items]
Non-cancelable operating leases expiration year				2022
Spain
Commitments And Contingencies Disclosure [Line Items]
Non-cancelable operating leases expiration year				2023
Ireland
Commitments And Contingencies Disclosure [Line Items]
Non-cancelable operating leases expiration year				2026
Termination period of lease				2021