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Maximum percentage of principal amount of debt convertible to ordinary shares.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The price per share of the conversion feature embedded in the debt instrument.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Cash received on stock transaction after deduction of issuance costs.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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SUBSEQUENT EVENTS (Details) - Subsequent Events $ / shares in Units, ¥ in Thousands, $ in Thousands		1 Months Ended			2 Months Ended	3 Months Ended	4 Months Ended
	Oct. 10, 2017 CNY (¥)	Dec. 31, 2017 CNY (¥)	Nov. 30, 2017 $ / shares shares	Oct. 31, 2017 USD ($) $ / shares shares	Jan. 23, 2018 CNY (¥)	Jan. 23, 2018 CNY (¥)	Jan. 23, 2018 USD ($)	Jan. 23, 2018 CNY (¥)	Nov. 30, 2017 CNY (¥)
Convertible Bonds due 2019
Conversion of Convertible Bonds due 2019
Maximum principal amount convertible to ordinary shares									100.00%
Class A ordinary shares \| Convertible Bonds due 2019
Conversion of Convertible Bonds due 2019
Number of shares issued on conversion (in shares) \| shares			97,870,263
Conversion price (in USD/share) \| $ / shares			$ 1.675262
Data center project in Guangzhou, China (Guangzhou 2)
Merger and acquisition
Aggregate purchase price	¥ 233,984
CyrusOne Inc., \| Private Placement \| Class A ordinary shares
Private Placement
Number of shares issued (in shares) \| shares				64,257,028
Price per share (in USD/share) \| $ / shares				$ 1.55625
Total consideration received \| $				$ 100,000
Subsidiary I \| Facility agreement with a third party bank
New Project Loan Facilities and Financing Arrangement
Term of loan				42 months
Loan drew down							$ 25,000	¥ 166,000
Effective interest rate (as a percent)				5.60%
Subsidiary I \| Facility agreement with a third party bank \| LIBOR
New Project Loan Facilities and Financing Arrangement
Variable interest rate				three-month LIBOR
Interest rate spread				4.25%
Subsidiary J \| Facility agreement with a third party bank
New Project Loan Facilities and Financing Arrangement
Term of loan			5 years
Loan drew down						¥ 175,782
Principal amount of credit facility									¥ 180,000
Subsidiary J \| Facility agreement with a third party bank \| Minimum
New Project Loan Facilities and Financing Arrangement
Effective interest rate (as a percent)									5.655%
Subsidiary J \| Facility agreement with a third party bank \| Maximum
New Project Loan Facilities and Financing Arrangement
Effective interest rate (as a percent)									6.175%
Subsidiary K \| Facility agreement with a third party bank
New Project Loan Facilities and Financing Arrangement
Term of loan			6 years
Loan drew down						¥ 402,251
Principal amount of credit facility									¥ 428,000
Effective interest rate (as a percent)									6.37%
Subsidiary L \| Facility agreement with a third party bank
New Project Loan Facilities and Financing Arrangement
Term of loan		7 years
Loan drew down					¥ 845,000
Principal amount of credit facility		¥ 1,010,000
Effective interest rate (as a percent)		7.35%
Subsidiary M \| Financing arrangement with a third-party financer
New Project Loan Facilities and Financing Arrangement
Term of loan			5 years
Principal amount of credit facility									¥ 200,000
Effective interest rate (as a percent)									9.70%
Subsidiary N \| Facility agreement with a third party bank
New Project Loan Facilities and Financing Arrangement
Term of loan		10 years
Loan drew down					¥ 57,067
Principal amount of credit facility		¥ 100,000
Effective interest rate (as a percent)		5.88%