SEGMENT - Long-term assets (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2022	Dec. 31, 2021
SEGMENT
Total Long-term assets	¥ 679,862	¥ 435,958
Mainland China
SEGMENT
Total Long-term assets	665,511	432,528
North America
SEGMENT
Total Long-term assets	¥ 14,351	¥ 3,430

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599

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