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TREASURY STOCK (Details) |  |  | 1 Months Ended | 0 Months Ended |  |  | 0 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 USD ($) | Dec. 31, 2013 CNY | Dec. 31, 2012 CNY | Oct. 31, 2013 2012 Convertible Senior Notes USD ($) | Sep. 26, 2012 Capped call option USD ($) item | Dec. 19, 2012 Capped call option American Depository Shares USD ($) item | Sep. 26, 2012 Capped call option American Depository Shares USD ($) | Dec. 19, 2012 Capped call option American Depository Shares Maximum | Sep. 26, 2012 Written call option American Depository Shares Long USD ($) | Sep. 26, 2012 Written call option American Depository Shares Short USD ($)
Treasure stock |  |  |  |  |  |  |  |  |  |
Initial notional amount of derivative |  |  |  |  | $ 75,000,000 |  |  |  |  |
Number of treasury stock to be repurchased as per the Agreement |  |  |  |  |  |  |  | 4,400,000 |  |
Number of components of the Agreements |  |  |  |  | 2 |  |  |  |  |
Treasure stock repurchase prepayment |  |  |  |  |  |  |  |  |  | 62,182,346
Strike price (in dollars per share) |  |  |  |  |  |  |  |  | $ 14.3621 | $ 0.0001
Total strike notion amount |  |  |  |  |  |  | 63,749,958 |  |  |
Premium that will be retained upon maturity, if trading price of stock gets above upper strike price |  |  |  |  |  | 1,567,612 |  |  |  |
Initial cash prepayment that will be retained upon maturity, if trading price of stock gets above upper strike price |  |  |  |  |  | 62,182,346 |  |  |  |
Cash settlement amount |  |  |  |  |  | 63,749,958 |  |  |  |
Number of shares to be received upon maturity if trading price of stock gets below upper strike price |  |  |  |  |  | 4,438,763 |  |  |  |
Settlement amount received |  |  |  |  |  | 63,700,000 |  |  |  |
Amount of convertible notes early converted |  |  |  | 45,500,000 |  |  |  |  |  |
Stock delivered to the notes holders (in shares) |  |  |  | 588,219 |  |  |  |  |  |
Treasury stock, shares | 3,777,087 | 3,777,087 | 4,365,306 |  |  |  |  |  |  |
Treasury stock at cost | $ 256,230,284 | 1,551,141,268 | 1,891,888,900 |  |  |  |  |  |  |

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- Definition Represents the number of components in accelerated share repurchase arrangement. + References No definition available. + Details
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- Definition Represents the treasure stock repurchase prepayment under the accelerated share repurchase arrangement. + References No definition available. + Details
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- Definition Represents the amount of initial cash prepayment that will be retained upon maturity of accelerated share repurchase arrangement, if trading price of stock gets above upper strike price. + References No definition available. + Details
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- Definition Represents the number of shares that will be received upon maturity of accelerated share repurchase arrangement, if trading price of stock is below upper strike price. + References No definition available. + Details
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- Definition Represents the amount of premium that will be retained upon maturity of accelerated share repurchase arrangement, if trading price of stock gets above upper strike price. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Amount of cash receipt from (payment to) bank; or stock received from (issuance to) bank in the settlement of the accelerated share repurchase agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
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- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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