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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 (¥)
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: