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v3.23.2

Contract liabilities - Revenue expected to be recognized in the future (Details) ¥ in Thousands | Dec. 31, 2022 CNY (¥)
--- | ---
Contract liabilities |
2023 | ¥ 321,373
2024 | 148,155
2025 | 96,651
2026 | 36,835
2027 | 322
2028 | ¥ 187

X
- Definition Amount of revenue expected to be recognized in the year five related to remaining performance obligations that are unsatisfied. + References No definition available. + Details
Name: | exc_RevenueRemainingPerformanceObligationExpectedToBeRecognizedInYearFive
Namespace Prefix: | exc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of revenue expected to be recognized in the year four related to remaining performance obligations that are unsatisfied. + References No definition available. + Details
Name: | exc_RevenueRemainingPerformanceObligationExpectedToBeRecognizedInYearFour
Namespace Prefix: | exc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of revenue expected to be recognized in the year seven related to remaining performance obligations that are unsatisfied. + References No definition available. + Details
Name: | exc_RevenueRemainingPerformanceObligationExpectedToBeRecognizedInYearSeven
Namespace Prefix: | exc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of revenue expected to be recognized in the year six related to remaining performance obligations that are unsatisfied. + References No definition available. + Details
Name: | exc_RevenueRemainingPerformanceObligationExpectedToBeRecognizedInYearSix
Namespace Prefix: | exc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of revenue expected to be recognized in the year three related to remaining performance obligations that are unsatisfied. + References No definition available. + Details
Name: | exc_RevenueRemainingPerformanceObligationExpectedToBeRecognizedInYearThree
Namespace Prefix: | exc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of revenue expected to be recognized in the year two related to remaining performance obligations that are unsatisfied. + References No definition available. + Details
Name: | exc_RevenueRemainingPerformanceObligationExpectedToBeRecognizedInYearTwo
Namespace Prefix: | exc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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