XML 101 R83.htm IDEA: XBRL DOCUMENT v3.25.1

Accounts receivable, net - Factoring agreement (Details) - CNY (¥) ¥ in Thousands	1 Months Ended
	Mar. 31, 2024	Dec. 31, 2024	Oct. 31, 2024
Credit Loss [Abstract]
Minimum interest rate	6.00%		4.80%
Factoring agreement period	1 year
Factoring accounts receivable	¥ 149,000	¥ 150,000	¥ 250,000
Factoring accounts receivable, advanced amount		¥ 384,225

X

- Definition

Cash Flows Between Transferor And Transferee, Agreement Period

+ References

No definition available.

+ Details

Name:	exc_CashFlowsBetweenTransferorAndTransfereeAgreementPeriod
Namespace Prefix:	exc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Cash Flows Between Transferor And Transferee, Minimum Interest Rate

+ References

No definition available.

+ Details

Name:	exc_CashFlowsBetweenTransferorAndTransfereeMinimumInterestRate
Namespace Prefix:	exc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Definition

Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that continue to be recognized in the statement of financial position. Includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4

+ Details

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