PROPERTY AND EQUIPMENT, NET - Property and equipment, held under capital leases (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2023 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CNY (¥)
PROPERTY AND EQUIPMENT, NET
Property and equipment, gross	¥ 17,171,494		¥ 14,866,510
Less: Accumulated depreciation	(6,987,542)		(5,548,663)
Property plant and equipment net excluding construction in progress	10,183,952		9,317,847
Construction-in-progress	3,444,237		2,770,348
Impairment	(603,796)		(123,697)
Property and equipment, net	13,024,393	$ 1,834,447	11,964,498
Property
PROPERTY AND EQUIPMENT, NET
Property and equipment, gross	2,672,822		2,236,257
Leasehold improvements
PROPERTY AND EQUIPMENT, NET
Property and equipment, gross	5,821,394		4,819,257
Computer and network equipment
PROPERTY AND EQUIPMENT, NET
Property and equipment, gross	8,437,075		7,577,082
Optical fibers
PROPERTY AND EQUIPMENT, NET
Property and equipment, gross	142,723		142,723
Office equipment
PROPERTY AND EQUIPMENT, NET
Property and equipment, gross	93,543		87,093
Motor vehicles
PROPERTY AND EQUIPMENT, NET
Property and equipment, gross	¥ 3,937		¥ 4,098

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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