RESTRICTED NET ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Taiwan [Member]
Restricted Net Assets [Abstract]
Percentage of profit after tax to legal reserve fund	10.00%
Minimum percentage of paid up capital to be maintained as legal reserve	25.00%
Accumulated reserve in statutory reserve account	$ 272	$ 76
Thailand [Member]
Restricted Net Assets [Abstract]
Accumulated reserve in statutory reserve account	$ 13	13
Thailand [Member] \| Minimum [Member]
Restricted Net Assets [Abstract]
Percentage of retained earnings to legal reserve	5.00%
Percentage of capital stock	10.00%
PRC [Member]
Restricted Net Assets [Abstract]
Accumulated reserve in statutory reserve account	$ 12,205	6,055
Indonesia [Member]
Restricted Net Assets [Abstract]
Percentage of profit after tax to legal reserve fund	20.00%
Statutory Reserve [Member]
Statutory Reserve [Abstract]
At the beginning of the financial year	$ 6,144	2,363
Transferred from retained earnings	6,346	3,781
At the end of the financial year	$ 12,490	$ 6,144

The amount transferred from retained earnings during the period.

No definition available.

Name:	se_AmountTransferredFromRetainedEarnings
Namespace Prefix:	se_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Minimum threshold percentage of paid up capital to be maintained as legal reserve.

+ References

No definition available.

+ Details

Name:	se_MinimumThresholdPercentageOfPaidUpCapitalToBeMaintainedAsLegalReserve
Namespace Prefix:	se_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of registered authorized capital threshold required to be set aside to legal reserve.

+ References

No definition available.

+ Details

Name:	se_PercentageOfCapitalStock
Namespace Prefix:	se_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of profit after tax to required to be set aside to legal reserve.

+ References

No definition available.

+ Details

Name:	se_PercentageOfProfitAfterTaxToLegalReserveFund
Namespace Prefix:	se_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of retained earnings to required to be set aside to legal reserve.

+ References

No definition available.

+ Details

Name:	se_PercentageOfRetainedEarningsToLegalReserve
Namespace Prefix:	se_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	se_RestrictedNetAssetsDisclosureAbstract
Namespace Prefix:	se_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e)(3)(ii))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Name:	us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_RestrictionsForConsolidatedAndUnconsolidatedSubsidiariesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

A segregation of retained earnings which is unavailable for dividend distribution. Includes also retained earnings appropriated for loss contingencies.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=65888546&loc=d3e21346-112643

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e)(1))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 45
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=65888546&loc=d3e21332-112643

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(23)(a)(4)(i))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-03(30)(a)(3)(ii))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_RetainedEarningsAppropriated
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_PublicUtilityRegulatedOrUnregulatedStatusAxis=country_TW
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilityRegulatedOrUnregulatedStatusAxis=country_TH
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_PublicUtilityRegulatedOrUnregulatedStatusAxis=country_CN
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilityRegulatedOrUnregulatedStatusAxis=country_ID
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsAppropriatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: