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PROPERTY AND EQUIPMENT, NET - Depreciation (Details) - CNY (¥) ¥ in Thousands | 9 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016
Depreciation expense |  |
Depreciation of property and equipment | ¥ 244,898 | ¥ 146,016
Cost of revenue |  |
Depreciation expense |  |
Depreciation of property and equipment | 239,581 | 142,553
General and administrative expenses |  |
Depreciation expense |  |
Depreciation of property and equipment | 4,895 | 3,063
Research and development expenses |  |
Depreciation expense |  |
Depreciation of property and equipment | ¥ 422 | ¥ 400

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- References No definition available. + Details
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- Details
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