SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impairment of goodwill and indefinite-lived intangible assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Impairment provisions	$ 0	$ 0	$ 0
Indefinite-lived intangible assets	$ 0	$ 0	$ 0

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.