XML 69 R60.htm IDEA: XBRL DOCUMENT
v3.20.2

Lease - Additional Information (Details) - lease | 6 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019
Lease |  |
Number of short-term lease |  | 1
Minimum |  |
Lease |  |
Operating lease remaining lease term | 1 year |
Maximum |  |
Lease |  |
Operating lease remaining lease term | 6 years |

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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. + References No definition available. + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Lessee, operating lease, remaining lease term. + References No definition available. + Details
Name: | zlab_LesseeOperatingLeaseRemainingLeaseTerm
Namespace Prefix: | zlab_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of short-term lease. + References No definition available. + Details
Name: | zlab_NumberOfShortTermLease
Namespace Prefix: | zlab_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |