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PROPERTY AND EQUIPMENT, NET (Details) - CNY (¥) ¥ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Property and equipment
Property and equipment, gross	¥ 5,678,676	¥ 4,239,158
Less: Accumulated depreciation	(857,006)	(613,658)
Property and equipment net excluding construction in progress	4,821,670	3,625,500
Construction in progress	1,547,160	697,391
Property and equipment, net	6,368,830	4,322,891
Buildings
Property and equipment
Property and equipment, gross	2,227,168	1,652,641
Data center equipment
Property and equipment
Property and equipment, gross	1,712,577	1,349,069
Leasehold improvement
Property and equipment
Property and equipment, gross	1,700,203	1,202,979
Furniture and office equipment
Property and equipment
Property and equipment, gross	35,331	31,270
Vehicles
Property and equipment
Property and equipment, gross	¥ 3,397	¥ 3,199

X

- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale, excluding construction in progress.

+ References

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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- Definition

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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- Definition

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