LEASES - Weighted average remaining lease term and discount rate (Details)	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Weighted-average remaining lease term (in years)
Operating leases	2 years 29 days	2 years 4 months 17 days	2 years 5 months 4 days
Weighted-average discount rate
Operating leases	3.40%	3.80%	4.30%
Land use rights
Weighted-average remaining lease term (in years)
Operating leases	38 years 8 months 4 days	39 years 8 months 4 days	43 years 2 months 4 days
Weighted-average discount rate
Operating leases	4.00%	4.00%	4.70%

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant