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Related Party Transactions - Schedule of Transactions With Related Parties (Details) ¥ in Thousands, $ in Thousands | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥)
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Guangzhou Tianlang Network Technology Co Ltd |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Services provided to related party | ¥ 100 | $ 16 | ¥ 0 | ¥ 266
Shenzhen Weixunyitong Information Technology Co Ltd |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Services received from related party | ¥ 0 | $ 0 | ¥ 0 | ¥ 11,600

X
- Definition Services provided due to related party. + References No definition available. + Details
Name: | jg_ServicesProvidedDueToRelatedParty
Namespace Prefix: | jg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Services received due from related party. + References No definition available. + Details
Name: | jg_ServicesReceivedDueFromRelatedParty
Namespace Prefix: | jg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=jg_GuangzhouTianlangNetworkTechnologyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=jg_ShenzhenWeixunyitongInformationTechnologyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |