XML 59 R49.htm IDEA: XBRL DOCUMENT
v3.21.2

RELATED PARTY TRANSACTIONS, Related Parties (Details) | 6 Months Ended
--- | ---
Jun. 30, 2021
Tencent Limited and its affiliates ("Tencent") [Member] |  |
Related Parties [Abstract] |  |
Relationship with the Company | A shareholder of the Company | [1]
[1] | These are the related parties that have engaged in significant transactions with the Company for the six months ended June 30, 2020 and 2021.

X
- References No definition available. + Details
Name: | se_RelatedPartiesAbstract
Namespace Prefix: | se_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents a description of the nature of common ownership or management control relationships with other entities, regardless of there being transactions between the entities, when the existence of that control could result in operating results or financial position of the reporting entity significantly different from that which would have been obtained if the entities' were autonomous. + References No definition available. + Details
Name: | us-gaap_NatureOfCommonOwnershipOrManagementControlRelationships
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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