XML 75 R58.htm IDEA: XBRL DOCUMENT
v3.21.1

Principal Accounting Policies (Details) | Oct. 01, 2020 | Sep. 30, 2020
--- | --- | ---
Principal Accounting Policies |  |
ADS to ordinary share ratio | 5 | 25

X
- Definition The number of underlying shares represented by one American Depository Receipt (ADR) or Global Depository Receipt (GDR). A value of '3' means that one ADR represents 3 underlying shares. If one underlying share represents 2 ADR's then the value would be represented as '0.5'. + References No definition available. + Details
Name: | dei_EntityListingDepositoryReceiptRatio
Namespace Prefix: | dei_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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