XML 136 R84.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Restricted Net Assets (Details) - Mainland China - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Restricted net assets |  |  |
Statutory reserves | $ 0 | $ 0 | $ 0
Restricted amount by subsidiaries | $ 506,000,000.0 | $ 456,000,000.0 |

X
- Definition Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(3)(ii)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 + Details
Name: | us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Restricted net assets. + References No definition available. + Details
Name: | zlab_RestrictedNetAssetsLineItems
Namespace Prefix: | zlab_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Statutory reserves. + References No definition available. + Details
Name: | zlab_StatutoryReserves
Namespace Prefix: | zlab_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_CN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |