SUMMARY OF PRINCIPAL ACCOUNTING POLICIES - Intangible assets (Details)	Jun. 30, 2025
Minimum \| Franchise or manachise agreements
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES
Remaining contract terms	10 years
Minimum \| Purchased software
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES
Remaining contract terms	3 years
Minimum \| Other intangible assets including trademark, licenses and other rights
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES
Remaining contract terms	2 years
Maximum \| Franchise or manachise agreements
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES
Remaining contract terms	20 years
Maximum \| Purchased software
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES
Remaining contract terms	10 years
Maximum \| Other intangible assets including trademark, licenses and other rights
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES
Remaining contract terms	15 years

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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